Opus · 柏拉图

蒂迈欧篇

Τίμαιος (Timaeus)
公元前 4 世纪 · 哲学对话录

English translation — Benjamin Jowett

PERSONS OF THE DIALOGUE: Socrates, Critias, Timaeus, Hermocrates.

  SOCRATES: One, two, three; but where, my dear Timaeus, is the
  fourth of those who were yesterday my guests and are to be my
  entertainers to-day?

  TIMAEUS: He has been taken ill, Socrates; for he would not
  willingly have been absent from this gathering.

  SOCRATES: Then, if he is not coming, you and the two others must
  supply his place.

  TIMAEUS: Certainly, and we will do all that we can; having been
  handsomely entertained by you yesterday, those of us who remain
  should be only too glad to return your hospitality.

  SOCRATES: Do you remember what were the points of which I
  required you to speak?

  TIMAEUS: We remember some of them, and you will be here to remind
  us of anything which we have forgotten: or rather, if we are not
  troubling you, will you briefly recapitulate the whole, and then
  the particulars will be more firmly fixed in our memories?

  SOCRATES: To be sure I will: the chief theme of my yesterday’s
  discourse was the State—how constituted and of what citizens
  composed it would seem likely to be most perfect.

  TIMAEUS: Yes, Socrates; and what you said of it was very much to
  our mind.

  SOCRATES: Did we not begin by separating the husbandmen and the
  artisans from the class of defenders of the State?

  TIMAEUS: Yes.

  SOCRATES: And when we had given to each one that single
  employment and particular art which was suited to his nature, we
  spoke of those who were intended to be our warriors, and said
  that they were to be guardians of the city against attacks from
  within as well as from without, and to have no other employment;
  they were to be merciful in judging their subjects, of whom they
  were by nature friends, but fierce to their enemies, when they
  came across them in battle.

  TIMAEUS: Exactly.

  SOCRATES: We said, if I am not mistaken, that the guardians
  should be gifted with a temperament in a high degree both
  passionate and philosophical; and that then they would be as they
  ought to be, gentle to their friends and fierce with their
  enemies.

  TIMAEUS: Certainly.

  SOCRATES: And what did we say of their education? Were they not
  to be trained in gymnastic, and music, and all other sorts of
  knowledge which were proper for them?

  TIMAEUS: Very true.

  SOCRATES: And being thus trained they were not to consider gold
  or silver or anything else to be their own private property; they
  were to be like hired troops, receiving pay for keeping guard
  from those who were protected by them—the pay was to be no more
  than would suffice for men of simple life; and they were to spend
  in common, and to live together in the continual practice of
  virtue, which was to be their sole pursuit.

  TIMAEUS: That was also said.

  SOCRATES: Neither did we forget the women; of whom we declared,
  that their natures should be assimilated and brought into harmony
  with those of the men, and that common pursuits should be
  assigned to them both in time of war and in their ordinary life.

  TIMAEUS: That, again, was as you say.

  SOCRATES: And what about the procreation of children? Or rather
  was not the proposal too singular to be forgotten? for all wives
  and children were to be in common, to the intent that no one
  should ever know his own child, but they were to imagine that
  they were all one family; those who were within a suitable limit
  of age were to be brothers and sisters, those who were of an
  elder generation parents and grandparents, and those of a
  younger, children and grandchildren.

  TIMAEUS: Yes, and the proposal is easy to remember, as you say.

  SOCRATES: And do you also remember how, with a view of securing
  as far as we could the best breed, we said that the chief
  magistrates, male and female, should contrive secretly, by the
  use of certain lots, so to arrange the nuptial meeting, that the
  bad of either sex and the good of either sex might pair with
  their like; and there was to be no quarrelling on this account,
  for they would imagine that the union was a mere accident, and
  was to be attributed to the lot?

  TIMAEUS: I remember.

  SOCRATES: And you remember how we said that the children of the
  good parents were to be educated, and the children of the bad
  secretly dispersed among the inferior citizens; and while they
  were all growing up the rulers were to be on the look-out, and to
  bring up from below in their turn those who were worthy, and
  those among themselves who were unworthy were to take the places
  of those who came up?

  TIMAEUS: True.

  SOCRATES: Then have I now given you all the heads of our
  yesterday’s discussion? Or is there anything more, my dear
  Timaeus, which has been omitted?

  TIMAEUS: Nothing, Socrates; it was just as you have said.

  SOCRATES: I should like, before proceeding further, to tell you
  how I feel about the State which we have described. I might
  compare myself to a person who, on beholding beautiful animals
  either created by the painter’s art, or, better still, alive but
  at rest, is seized with a desire of seeing them in motion or
  engaged in some struggle or conflict to which their forms appear
  suited; this is my feeling about the State which we have been
  describing. There are conflicts which all cities undergo, and I
  should like to hear some one tell of our own city carrying on a
  struggle against her neighbours, and how she went out to war in a
  becoming manner, and when at war showed by the greatness of her
  actions and the magnanimity of her words in dealing with other
  cities a result worthy of her training and education. Now I,
  Critias and Hermocrates, am conscious that I myself should never
  be able to celebrate the city and her citizens in a befitting
  manner, and I am not surprised at my own incapacity; to me the
  wonder is rather that the poets present as well as past are no
  better—not that I mean to depreciate them; but every one can see
  that they are a tribe of imitators, and will imitate best and
  most easily the life in which they have been brought up; while
  that which is beyond the range of a man’s education he finds hard
  to carry out in action, and still harder adequately to represent
  in language. I am aware that the Sophists have plenty of brave
  words and fair conceits, but I am afraid that being only
  wanderers from one city to another, and having never had
  habitations of their own, they may fail in their conception of
  philosophers and statesmen, and may not know what they do and say
  in time of war, when they are fighting or holding parley with
  their enemies. And thus people of your class are the only ones
  remaining who are fitted by nature and education to take part at
  once both in politics and philosophy. Here is Timaeus, of Locris
  in Italy, a city which has admirable laws, and who is himself in
  wealth and rank the equal of any of his fellow-citizens; he has
  held the most important and honourable offices in his own state,
  and, as I believe, has scaled the heights of all philosophy; and
  here is Critias, whom every Athenian knows to be no novice in the
  matters of which we are speaking; and as to Hermocrates, I am
  assured by many witnesses that his genius and education qualify
  him to take part in any speculation of the kind. And therefore
  yesterday when I saw that you wanted me to describe the formation
  of the State, I readily assented, being very well aware, that, if
  you only would, none were better qualified to carry the
  discussion further, and that when you had engaged our city in a
  suitable war, you of all men living could best exhibit her
  playing a fitting part. When I had completed my task, I in return
  imposed this other task upon you. You conferred together and
  agreed to entertain me to-day, as I had entertained you, with a
  feast of discourse. Here am I in festive array, and no man can be
  more ready for the promised banquet.

  HERMOCRATES: And we too, Socrates, as Timaeus says, will not be
  wanting in enthusiasm; and there is no excuse for not complying
  with your request. As soon as we arrived yesterday at the
  guest-chamber of Critias, with whom we are staying, or rather on
  our way thither, we talked the matter over, and he told us an
  ancient tradition, which I wish, Critias, that you would repeat
  to Socrates, so that he may help us to judge whether it will
  satisfy his requirements or not.

  CRITIAS: I will, if Timaeus, who is our other partner, approves.

  TIMAEUS: I quite approve.

  CRITIAS: Then listen, Socrates, to a tale which, though strange,
  is certainly true, having been attested by Solon, who was the
  wisest of the seven sages. He was a relative and a dear friend of
  my great-grandfather, Dropides, as he himself says in many
  passages of his poems; and he told the story to Critias, my
  grandfather, who remembered and repeated it to us. There were of
  old, he said, great and marvellous actions of the Athenian city,
  which have passed into oblivion through lapse of time and the
  destruction of mankind, and one in particular, greater than all
  the rest. This we will now rehearse. It will be a fitting
  monument of our gratitude to you, and a hymn of praise true and
  worthy of the goddess, on this her day of festival.

  SOCRATES: Very good. And what is this ancient famous action of
  the Athenians, which Critias declared, on the authority of Solon,
  to be not a mere legend, but an actual fact?

  CRITIAS: I will tell an old-world story which I heard from an
  aged man; for Critias, at the time of telling it, was, as he
  said, nearly ninety years of age, and I was about ten. Now the
  day was that day of the Apaturia which is called the Registration
  of Youth, at which, according to custom, our parents gave prizes
  for recitations, and the poems of several poets were recited by
  us boys, and many of us sang the poems of Solon, which at that
  time had not gone out of fashion. One of our tribe, either
  because he thought so or to please Critias, said that in his
  judgment Solon was not only the wisest of men, but also the
  noblest of poets. The old man, as I very well remember,
  brightened up at hearing this and said, smiling: Yes, Amynander,
  if Solon had only, like other poets, made poetry the business of
  his life, and had completed the tale which he brought with him
  from Egypt, and had not been compelled, by reason of the factions
  and troubles which he found stirring in his own country when he
  came home, to attend to other matters, in my opinion he would
  have been as famous as Homer or Hesiod, or any poet.

  And what was the tale about, Critias? said Amynander.

  About the greatest action which the Athenians ever did, and which
  ought to have been the most famous, but, through the lapse of
  time and the destruction of the actors, it has not come down to
  us.

  Tell us, said the other, the whole story, and how and from whom
  Solon heard this veritable tradition.

  He replied:—In the Egyptian Delta, at the head of which the river
  Nile divides, there is a certain district which is called the
  district of Sais, and the great city of the district is also
  called Sais, and is the city from which King Amasis came. The
  citizens have a deity for their foundress; she is called in the
  Egyptian tongue Neith, and is asserted by them to be the same
  whom the Hellenes call Athene; they are great lovers of the
  Athenians, and say that they are in some way related to them. To
  this city came Solon, and was received there with great honour;
  he asked the priests who were most skilful in such matters, about
  antiquity, and made the discovery that neither he nor any other
  Hellene knew anything worth mentioning about the times of old. On
  one occasion, wishing to draw them on to speak of antiquity, he
  began to tell about the most ancient things in our part of the
  world—about Phoroneus, who is called ‘the first man,’ and about
  Niobe; and after the Deluge, of the survival of Deucalion and
  Pyrrha; and he traced the genealogy of their descendants, and
  reckoning up the dates, tried to compute how many years ago the
  events of which he was speaking happened. Thereupon one of the
  priests, who was of a very great age, said: O Solon, Solon, you
  Hellenes are never anything but children, and there is not an old
  man among you. Solon in return asked him what he meant. I mean to
  say, he replied, that in mind you are all young; there is no old
  opinion handed down among you by ancient tradition, nor any
  science which is hoary with age. And I will tell you why. There
  have been, and will be again, many destructions of mankind
  arising out of many causes; the greatest have been brought about
  by the agencies of fire and water, and other lesser ones by
  innumerable other causes. There is a story, which even you have
  preserved, that once upon a time Paethon, the son of Helios,
  having yoked the steeds in his father’s chariot, because he was
  not able to drive them in the path of his father, burnt up all
  that was upon the earth, and was himself destroyed by a
  thunderbolt. Now this has the form of a myth, but really
  signifies a declination of the bodies moving in the heavens
  around the earth, and a great conflagration of things upon the
  earth, which recurs after long intervals; at such times those who
  live upon the mountains and in dry and lofty places are more
  liable to destruction than those who dwell by rivers or on the
  seashore. And from this calamity the Nile, who is our
  never-failing saviour, delivers and preserves us. When, on the
  other hand, the gods purge the earth with a deluge of water, the
  survivors in your country are herdsmen and shepherds who dwell on
  the mountains, but those who, like you, live in cities are
  carried by the rivers into the sea. Whereas in this land, neither
  then nor at any other time, does the water come down from above
  on the fields, having always a tendency to come up from below;
  for which reason the traditions preserved here are the most
  ancient. The fact is, that wherever the extremity of winter frost
  or of summer sun does not prevent, mankind exist, sometimes in
  greater, sometimes in lesser numbers. And whatever happened
  either in your country or in ours, or in any other region of
  which we are informed—if there were any actions noble or great or
  in any other way remarkable, they have all been written down by
  us of old, and are preserved in our temples. Whereas just when
  you and other nations are beginning to be provided with letters
  and the other requisites of civilized life, after the usual
  interval, the stream from heaven, like a pestilence, comes
  pouring down, and leaves only those of you who are destitute of
  letters and education; and so you have to begin all over again
  like children, and know nothing of what happened in ancient
  times, either among us or among yourselves. As for those
  genealogies of yours which you just now recounted to us, Solon,
  they are no better than the tales of children. In the first place
  you remember a single deluge only, but there were many previous
  ones; in the next place, you do not know that there formerly
  dwelt in your land the fairest and noblest race of men which ever
  lived, and that you and your whole city are descended from a
  small seed or remnant of them which survived. And this was
  unknown to you, because, for many generations, the survivors of
  that destruction died, leaving no written word. For there was a
  time, Solon, before the great deluge of all, when the city which
  now is Athens was first in war and in every way the best governed
  of all cities, is said to have performed the noblest deeds and to
  have had the fairest constitution of any of which tradition
  tells, under the face of heaven. Solon marvelled at his words,
  and earnestly requested the priests to inform him exactly and in
  order about these former citizens. You are welcome to hear about
  them, Solon, said the priest, both for your own sake and for that
  of your city, and above all, for the sake of the goddess who is
  the common patron and parent and educator of both our cities. She
  founded your city a thousand years before ours (Observe that
  Plato gives the same date (9000 years ago) for the foundation of
  Athens and for the repulse of the invasion from Atlantis
  (Crit.).), receiving from the Earth and Hephaestus the seed of
  your race, and afterwards she founded ours, of which the
  constitution is recorded in our sacred registers to be 8000 years
  old. As touching your citizens of 9000 years ago, I will briefly
  inform you of their laws and of their most famous action; the
  exact particulars of the whole we will hereafter go through at
  our leisure in the sacred registers themselves. If you compare
  these very laws with ours you will find that many of ours are the
  counterpart of yours as they were in the olden time. In the first
  place, there is the caste of priests, which is separated from all
  the others; next, there are the artificers, who ply their several
  crafts by themselves and do not intermix; and also there is the
  class of shepherds and of hunters, as well as that of husbandmen;
  and you will observe, too, that the warriors in Egypt are
  distinct from all the other classes, and are commanded by the law
  to devote themselves solely to military pursuits; moreover, the
  weapons which they carry are shields and spears, a style of
  equipment which the goddess taught of Asiatics first to us, as in
  your part of the world first to you. Then as to wisdom, do you
  observe how our law from the very first made a study of the whole
  order of things, extending even to prophecy and medicine which
  gives health, out of these divine elements deriving what was
  needful for human life, and adding every sort of knowledge which
  was akin to them. All this order and arrangement the goddess
  first imparted to you when establishing your city; and she chose
  the spot of earth in which you were born, because she saw that
  the happy temperament of the seasons in that land would produce
  the wisest of men. Wherefore the goddess, who was a lover both of
  war and of wisdom, selected and first of all settled that spot
  which was the most likely to produce men likest herself. And
  there you dwelt, having such laws as these and still better ones,
  and excelled all mankind in all virtue, as became the children
  and disciples of the gods.

  Many great and wonderful deeds are recorded of your state in our
  histories. But one of them exceeds all the rest in greatness and
  valour. For these histories tell of a mighty power which
  unprovoked made an expedition against the whole of Europe and
  Asia, and to which your city put an end. This power came forth
  out of the Atlantic Ocean, for in those days the Atlantic was
  navigable; and there was an island situated in front of the
  straits which are by you called the Pillars of Heracles; the
  island was larger than Libya and Asia put together, and was the
  way to other islands, and from these you might pass to the whole
  of the opposite continent which surrounded the true ocean; for
  this sea which is within the Straits of Heracles is only a
  harbour, having a narrow entrance, but that other is a real sea,
  and the surrounding land may be most truly called a boundless
  continent. Now in this island of Atlantis there was a great and
  wonderful empire which had rule over the whole island and several
  others, and over parts of the continent, and, furthermore, the
  men of Atlantis had subjected the parts of Libya within the
  columns of Heracles as far as Egypt, and of Europe as far as
  Tyrrhenia. This vast power, gathered into one, endeavoured to
  subdue at a blow our country and yours and the whole of the
  region within the straits; and then, Solon, your country shone
  forth, in the excellence of her virtue and strength, among all
  mankind. She was pre-eminent in courage and military skill, and
  was the leader of the Hellenes. And when the rest fell off from
  her, being compelled to stand alone, after having undergone the
  very extremity of danger, she defeated and triumphed over the
  invaders, and preserved from slavery those who were not yet
  subjugated, and generously liberated all the rest of us who dwell
  within the pillars. But afterwards there occurred violent
  earthquakes and floods; and in a single day and night of
  misfortune all your warlike men in a body sank into the earth,
  and the island of Atlantis in like manner disappeared in the
  depths of the sea. For which reason the sea in those parts is
  impassable and impenetrable, because there is a shoal of mud in
  the way; and this was caused by the subsidence of the island.

  I have told you briefly, Socrates, what the aged Critias heard
  from Solon and related to us. And when you were speaking
  yesterday about your city and citizens, the tale which I have
  just been repeating to you came into my mind, and I remarked with
  astonishment how, by some mysterious coincidence, you agreed in
  almost every particular with the narrative of Solon; but I did
  not like to speak at the moment. For a long time had elapsed, and
  I had forgotten too much; I thought that I must first of all run
  over the narrative in my own mind, and then I would speak. And so
  I readily assented to your request yesterday, considering that in
  all such cases the chief difficulty is to find a tale suitable to
  our purpose, and that with such a tale we should be fairly well
  provided.

  And therefore, as Hermocrates has told you, on my way home
  yesterday I at once communicated the tale to my companions as I
  remembered it; and after I left them, during the night by
  thinking I recovered nearly the whole of it. Truly, as is often
  said, the lessons of our childhood make a wonderful impression on
  our memories; for I am not sure that I could remember all the
  discourse of yesterday, but I should be much surprised if I
  forgot any of these things which I have heard very long ago. I
  listened at the time with childlike interest to the old man’s
  narrative; he was very ready to teach me, and I asked him again
  and again to repeat his words, so that like an indelible picture
  they were branded into my mind. As soon as the day broke, I
  rehearsed them as he spoke them to my companions, that they, as
  well as myself, might have something to say. And now, Socrates,
  to make an end of my preface, I am ready to tell you the whole
  tale. I will give you not only the general heads, but the
  particulars, as they were told to me. The city and citizens,
  which you yesterday described to us in fiction, we will now
  transfer to the world of reality. It shall be the ancient city of
  Athens, and we will suppose that the citizens whom you imagined,
  were our veritable ancestors, of whom the priest spoke; they will
  perfectly harmonize, and there will be no inconsistency in saying
  that the citizens of your republic are these ancient Athenians.
  Let us divide the subject among us, and all endeavour according
  to our ability gracefully to execute the task which you have
  imposed upon us. Consider then, Socrates, if this narrative is
  suited to the purpose, or whether we should seek for some other
  instead.

  SOCRATES: And what other, Critias, can we find that will be
  better than this, which is natural and suitable to the festival
  of the goddess, and has the very great advantage of being a fact
  and not a fiction? How or where shall we find another if we
  abandon this? We cannot, and therefore you must tell the tale,
  and good luck to you; and I in return for my yesterday’s
  discourse will now rest and be a listener.

  CRITIAS: Let me proceed to explain to you, Socrates, the order in
  which we have arranged our entertainment. Our intention is, that
  Timaeus, who is the most of an astronomer amongst us, and has
  made the nature of the universe his special study, should speak
  first, beginning with the generation of the world and going down
  to the creation of man; next, I am to receive the men whom he has
  created, and of whom some will have profited by the excellent
  education which you have given them; and then, in accordance with
  the tale of Solon, and equally with his law, we will bring them
  into court and make them citizens, as if they were those very
  Athenians whom the sacred Egyptian record has recovered from
  oblivion, and thenceforward we will speak of them as Athenians
  and fellow-citizens.

  SOCRATES: I see that I shall receive in my turn a perfect and
  splendid feast of reason. And now, Timaeus, you, I suppose,
  should speak next, after duly calling upon the Gods.

  TIMAEUS: All men, Socrates, who have any degree of right feeling,
  at the beginning of every enterprise, whether small or great,
  always call upon God. And we, too, who are going to discourse of
  the nature of the universe, how created or how existing without
  creation, if we be not altogether out of our wits, must invoke
  the aid of Gods and Goddesses and pray that our words may be
  acceptable to them and consistent with themselves. Let this,
  then, be our invocation of the Gods, to which I add an
  exhortation of myself to speak in such manner as will be most
  intelligible to you, and will most accord with my own intent.

  First then, in my judgment, we must make a distinction and ask,
  What is that which always is and has no becoming; and what is
  that which is always becoming and never is? That which is
  apprehended by intelligence and reason is always in the same
  state; but that which is conceived by opinion with the help of
  sensation and without reason, is always in a process of becoming
  and perishing and never really is. Now everything that becomes or
  is created must of necessity be created by some cause, for
  without a cause nothing can be created. The work of the creator,
  whenever he looks to the unchangeable and fashions the form and
  nature of his work after an unchangeable pattern, must
  necessarily be made fair and perfect; but when he looks to the
  created only, and uses a created pattern, it is not fair or
  perfect. Was the heaven then or the world, whether called by this
  or by any other more appropriate name—assuming the name, I am
  asking a question which has to be asked at the beginning of an
  enquiry about anything—was the world, I say, always in existence
  and without beginning? or created, and had it a beginning?
  Created, I reply, being visible and tangible and having a body,
  and therefore sensible; and all sensible things are apprehended
  by opinion and sense and are in a process of creation and
  created. Now that which is created must, as we affirm, of
  necessity be created by a cause. But the father and maker of all
  this universe is past finding out; and even if we found him, to
  tell of him to all men would be impossible. And there is still a
  question to be asked about him: Which of the patterns had the
  artificer in view when he made the world—the pattern of the
  unchangeable, or of that which is created? If the world be indeed
  fair and the artificer good, it is manifest that he must have
  looked to that which is eternal; but if what cannot be said
  without blasphemy is true, then to the created pattern. Every one
  will see that he must have looked to the eternal; for the world
  is the fairest of creations and he is the best of causes. And
  having been created in this way, the world has been framed in the
  likeness of that which is apprehended by reason and mind and is
  unchangeable, and must therefore of necessity, if this is
  admitted, be a copy of something. Now it is all-important that
  the beginning of everything should be according to nature. And in
  speaking of the copy and the original we may assume that words
  are akin to the matter which they describe; when they relate to
  the lasting and permanent and intelligible, they ought to be
  lasting and unalterable, and, as far as their nature allows,
  irrefutable and immovable—nothing less. But when they express
  only the copy or likeness and not the eternal things themselves,
  they need only be likely and analogous to the real words. As
  being is to becoming, so is truth to belief. If then, Socrates,
  amid the many opinions about the gods and the generation of the
  universe, we are not able to give notions which are altogether
  and in every respect exact and consistent with one another, do
  not be surprised. Enough, if we adduce probabilities as likely as
  any others; for we must remember that I who am the speaker, and
  you who are the judges, are only mortal men, and we ought to
  accept the tale which is probable and enquire no further.

  SOCRATES: Excellent, Timaeus; and we will do precisely as you bid
  us. The prelude is charming, and is already accepted by us—may we
  beg of you to proceed to the strain?

  TIMAEUS: Let me tell you then why the creator made this world of
  generation. He was good, and the good can never have any jealousy
  of anything. And being free from jealousy, he desired that all
  things should be as like himself as they could be. This is in the
  truest sense the origin of creation and of the world, as we shall
  do well in believing on the testimony of wise men: God desired
  that all things should be good and nothing bad, so far as this
  was attainable. Wherefore also finding the whole visible sphere
  not at rest, but moving in an irregular and disorderly fashion,
  out of disorder he brought order, considering that this was in
  every way better than the other. Now the deeds of the best could
  never be or have been other than the fairest; and the creator,
  reflecting on the things which are by nature visible, found that
  no unintelligent creature taken as a whole was fairer than the
  intelligent taken as a whole; and that intelligence could not be
  present in anything which was devoid of soul. For which reason,
  when he was framing the universe, he put intelligence in soul,
  and soul in body, that he might be the creator of a work which
  was by nature fairest and best. Wherefore, using the language of
  probability, we may say that the world became a living creature
  truly endowed with soul and intelligence by the providence of
  God.

  This being supposed, let us proceed to the next stage: In the
  likeness of what animal did the Creator make the world? It would
  be an unworthy thing to liken it to any nature which exists as a
  part only; for nothing can be beautiful which is like any
  imperfect thing; but let us suppose the world to be the very
  image of that whole of which all other animals both individually
  and in their tribes are portions. For the original of the
  universe contains in itself all intelligible beings, just as this
  world comprehends us and all other visible creatures. For the
  Deity, intending to make this world like the fairest and most
  perfect of intelligible beings, framed one visible animal
  comprehending within itself all other animals of a kindred
  nature. Are we right in saying that there is one world, or that
  they are many and infinite? There must be one only, if the
  created copy is to accord with the original. For that which
  includes all other intelligible creatures cannot have a second or
  companion; in that case there would be need of another living
  being which would include both, and of which they would be parts,
  and the likeness would be more truly said to resemble not them,
  but that other which included them. In order then that the world
  might be solitary, like the perfect animal, the creator made not
  two worlds or an infinite number of them; but there is and ever
  will be one only-begotten and created heaven.

  Now that which is created is of necessity corporeal, and also
  visible and tangible. And nothing is visible where there is no
  fire, or tangible which has no solidity, and nothing is solid
  without earth. Wherefore also God in the beginning of creation
  made the body of the universe to consist of fire and earth. But
  two things cannot be rightly put together without a third; there
  must be some bond of union between them. And the fairest bond is
  that which makes the most complete fusion of itself and the
  things which it combines; and proportion is best adapted to
  effect such a union. For whenever in any three numbers, whether
  cube or square, there is a mean, which is to the last term what
  the first term is to it; and again, when the mean is to the first
  term as the last term is to the mean—then the mean becoming first
  and last, and the first and last both becoming means, they will
  all of them of necessity come to be the same, and having become
  the same with one another will be all one. If the universal frame
  had been created a surface only and having no depth, a single
  mean would have sufficed to bind together itself and the other
  terms; but now, as the world must be solid, and solid bodies are
  always compacted not by one mean but by two, God placed water and
  air in the mean between fire and earth, and made them to have the
  same proportion so far as was possible (as fire is to air so is
  air to water, and as air is to water so is water to earth); and
  thus he bound and put together a visible and tangible heaven. And
  for these reasons, and out of such elements which are in number
  four, the body of the world was created, and it was harmonized by
  proportion, and therefore has the spirit of friendship; and
  having been reconciled to itself, it was indissoluble by the hand
  of any other than the framer.

  Now the creation took up the whole of each of the four elements;
  for the Creator compounded the world out of all the fire and all
  the water and all the air and all the earth, leaving no part of
  any of them nor any power of them outside. His intention was, in
  the first place, that the animal should be as far as possible a
  perfect whole and of perfect parts: secondly, that it should be
  one, leaving no remnants out of which another such world might be
  created: and also that it should be free from old age and
  unaffected by disease. Considering that if heat and cold and
  other powerful forces which unite bodies surround and attack them
  from without when they are unprepared, they decompose them, and
  by bringing diseases and old age upon them, make them waste
  away—for this cause and on these grounds he made the world one
  whole, having every part entire, and being therefore perfect and
  not liable to old age and disease. And he gave to the world the
  figure which was suitable and also natural. Now to the animal
  which was to comprehend all animals, that figure was suitable
  which comprehends within itself all other figures. Wherefore he
  made the world in the form of a globe, round as from a lathe,
  having its extremes in every direction equidistant from the
  centre, the most perfect and the most like itself of all figures;
  for he considered that the like is infinitely fairer than the
  unlike. This he finished off, making the surface smooth all round
  for many reasons; in the first place, because the living being
  had no need of eyes when there was nothing remaining outside him
  to be seen; nor of ears when there was nothing to be heard; and
  there was no surrounding atmosphere to be breathed; nor would
  there have been any use of organs by the help of which he might
  receive his food or get rid of what he had already digested,
  since there was nothing which went from him or came into him: for
  there was nothing beside him. Of design he was created thus, his
  own waste providing his own food, and all that he did or suffered
  taking place in and by himself. For the Creator conceived that a
  being which was self-sufficient would be far more excellent than
  one which lacked anything; and, as he had no need to take
  anything or defend himself against any one, the Creator did not
  think it necessary to bestow upon him hands: nor had he any need
  of feet, nor of the whole apparatus of walking; but the movement
  suited to his spherical form was assigned to him, being of all
  the seven that which is most appropriate to mind and
  intelligence; and he was made to move in the same manner and on
  the same spot, within his own limits revolving in a circle. All
  the other six motions were taken away from him, and he was made
  not to partake of their deviations. And as this circular movement
  required no feet, the universe was created without legs and
  without feet.

  Such was the whole plan of the eternal God about the god that was
  to be, to whom for this reason he gave a body, smooth and even,
  having a surface in every direction equidistant from the centre,
  a body entire and perfect, and formed out of perfect bodies. And
  in the centre he put the soul, which he diffused throughout the
  body, making it also to be the exterior environment of it; and he
  made the universe a circle moving in a circle, one and solitary,
  yet by reason of its excellence able to converse with itself, and
  needing no other friendship or acquaintance. Having these
  purposes in view he created the world a blessed god.

  Now God did not make the soul after the body, although we are
  speaking of them in this order; for having brought them together
  he would never have allowed that the elder should be ruled by the
  younger; but this is a random manner of speaking which we have,
  because somehow we ourselves too are very much under the dominion
  of chance. Whereas he made the soul in origin and excellence
  prior to and older than the body, to be the ruler and mistress,
  of whom the body was to be the subject. And he made her out of
  the following elements and on this wise: Out of the indivisible
  and unchangeable, and also out of that which is divisible and has
  to do with material bodies, he compounded a third and
  intermediate kind of essence, partaking of the nature of the same
  and of the other, and this compound he placed accordingly in a
  mean between the indivisible, and the divisible and material. He
  took the three elements of the same, the other, and the essence,
  and mingled them into one form, compressing by force the
  reluctant and unsociable nature of the other into the same. When
  he had mingled them with the essence and out of three made one,
  he again divided this whole into as many portions as was fitting,
  each portion being a compound of the same, the other, and the
  essence. And he proceeded to divide after this manner:—First of
  all, he took away one part of the whole (1), and then he
  separated a second part which was double the first (2), and then
  he took away a third part which was half as much again as the
  second and three times as much as the first (3), and then he took
  a fourth part which was twice as much as the second (4), and a
  fifth part which was three times the third (9), and a sixth part
  which was eight times the first (8), and a seventh part which was
  twenty-seven times the first (27). After this he filled up the
  double intervals (i.e. between 1, 2, 4, 8) and the triple (i.e.
  between 1, 3, 9, 27) cutting off yet other portions from the
  mixture and placing them in the intervals, so that in each
  interval there were two kinds of means, the one exceeding and
  exceeded by equal parts of its extremes (as for example 1, 4/3,
  2, in which the mean 4/3 is one-third of 1 more than 1, and
  one-third of 2 less than 2), the other being that kind of mean
  which exceeds and is exceeded by an equal number (e.g.

243:256::81/64:4/3::243/128:2::81/32:8/3::243/64:4::81/16:16/3::242/32:8.

  And thus the whole mixture out of which he cut these portions was
  all exhausted by him. This entire compound he divided lengthways
  into two parts, which he joined to one another at the centre like
  the letter X, and bent them into a circular form, connecting them
  with themselves and each other at the point opposite to their
  original meeting-point; and, comprehending them in a uniform
  revolution upon the same axis, he made the one the outer and the
  other the inner circle. Now the motion of the outer circle he
  called the motion of the same, and the motion of the inner circle
  the motion of the other or diverse. The motion of the same he
  carried round by the side (i.e. of the rectangular figure
  supposed to be inscribed in the circle of the Same) to the right,
  and the motion of the diverse diagonally (i.e. across the
  rectangular figure from corner to corner) to the left. And he
  gave dominion to the motion of the same and like, for that he
  left single and undivided; but the inner motion he divided in six
  places and made seven unequal circles having their intervals in
  ratios of two and three, three of each, and bade the orbits
  proceed in a direction opposite to one another; and three (Sun,
  Mercury, Venus) he made to move with equal swiftness, and the
  remaining four (Moon, Saturn, Mars, Jupiter) to move with unequal
  swiftness to the three and to one another, but in due proportion.

  Now when the Creator had framed the soul according to his will,
  he formed within her the corporeal universe, and brought the two
  together, and united them centre to centre. The soul, interfused
  everywhere from the centre to the circumference of heaven, of
  which also she is the external envelopment, herself turning in
  herself, began a divine beginning of never-ceasing and rational
  life enduring throughout all time. The body of heaven is visible,
  but the soul is invisible, and partakes of reason and harmony,
  and being made by the best of intellectual and everlasting
  natures, is the best of things created. And because she is
  composed of the same and of the other and of the essence, these
  three, and is divided and united in due proportion, and in her
  revolutions returns upon herself, the soul, when touching
  anything which has essence, whether dispersed in parts or
  undivided, is stirred through all her powers, to declare the
  sameness or difference of that thing and some other; and to what
  individuals are related, and by what affected, and in what way
  and how and when, both in the world of generation and in the
  world of immutable being. And when reason, which works with equal
  truth, whether she be in the circle of the diverse or of the
  same—in voiceless silence holding her onward course in the sphere
  of the self-moved—when reason, I say, is hovering around the
  sensible world and when the circle of the diverse also moving
  truly imparts the intimations of sense to the whole soul, then
  arise opinions and beliefs sure and certain. But when reason is
  concerned with the rational, and the circle of the same moving
  smoothly declares it, then intelligence and knowledge are
  necessarily perfected. And if any one affirms that in which these
  two are found to be other than the soul, he will say the very
  opposite of the truth.

  When the father and creator saw the creature which he had made
  moving and living, the created image of the eternal gods, he
  rejoiced, and in his joy determined to make the copy still more
  like the original; and as this was eternal, he sought to make the
  universe eternal, so far as might be. Now the nature of the ideal
  being was everlasting, but to bestow this attribute in its
  fulness upon a creature was impossible. Wherefore he resolved to
  have a moving image of eternity, and when he set in order the
  heaven, he made this image eternal but moving according to
  number, while eternity itself rests in unity; and this image we
  call time. For there were no days and nights and months and years
  before the heaven was created, but when he constructed the heaven
  he created them also. They are all parts of time, and the past
  and future are created species of time, which we unconsciously
  but wrongly transfer to the eternal essence; for we say that he
  ‘was,’ he ‘is,’ he ‘will be,’ but the truth is that ‘is’ alone is
  properly attributed to him, and that ‘was’ and ‘will be’ are only
  to be spoken of becoming in time, for they are motions, but that
  which is immovably the same cannot become older or younger by
  time, nor ever did or has become, or hereafter will be, older or
  younger, nor is subject at all to any of those states which
  affect moving and sensible things and of which generation is the
  cause. These are the forms of time, which imitates eternity and
  revolves according to a law of number. Moreover, when we say that
  what has become IS become and what becomes IS becoming, and that
  what will become IS about to become and that the non-existent IS
  non-existent—all these are inaccurate modes of expression
  (compare Parmen.). But perhaps this whole subject will be more
  suitably discussed on some other occasion.

  Time, then, and the heaven came into being at the same instant in
  order that, having been created together, if ever there was to be
  a dissolution of them, they might be dissolved together. It was
  framed after the pattern of the eternal nature, that it might
  resemble this as far as was possible; for the pattern exists from
  eternity, and the created heaven has been, and is, and will be,
  in all time. Such was the mind and thought of God in the creation
  of time. The sun and moon and five other stars, which are called
  the planets, were created by him in order to distinguish and
  preserve the numbers of time; and when he had made their several
  bodies, he placed them in the orbits in which the circle of the
  other was revolving,—in seven orbits seven stars. First, there
  was the moon in the orbit nearest the earth, and next the sun, in
  the second orbit above the earth; then came the morning star and
  the star sacred to Hermes, moving in orbits which have an equal
  swiftness with the sun, but in an opposite direction; and this is
  the reason why the sun and Hermes and Lucifer overtake and are
  overtaken by each other. To enumerate the places which he
  assigned to the other stars, and to give all the reasons why he
  assigned them, although a secondary matter, would give more
  trouble than the primary. These things at some future time, when
  we are at leisure, may have the consideration which they deserve,
  but not at present.

  Now, when all the stars which were necessary to the creation of
  time had attained a motion suitable to them, and had become
  living creatures having bodies fastened by vital chains, and
  learnt their appointed task, moving in the motion of the diverse,
  which is diagonal, and passes through and is governed by the
  motion of the same, they revolved, some in a larger and some in a
  lesser orbit—those which had the lesser orbit revolving faster,
  and those which had the larger more slowly. Now by reason of the
  motion of the same, those which revolved fastest appeared to be
  overtaken by those which moved slower although they really
  overtook them; for the motion of the same made them all turn in a
  spiral, and, because some went one way and some another, that
  which receded most slowly from the sphere of the same, which was
  the swiftest, appeared to follow it most nearly. That there might
  be some visible measure of their relative swiftness and slowness
  as they proceeded in their eight courses, God lighted a fire,
  which we now call the sun, in the second from the earth of these
  orbits, that it might give light to the whole of heaven, and that
  the animals, as many as nature intended, might participate in
  number, learning arithmetic from the revolution of the same and
  the like. Thus then, and for this reason the night and the day
  were created, being the period of the one most intelligent
  revolution. And the month is accomplished when the moon has
  completed her orbit and overtaken the sun, and the year when the
  sun has completed his own orbit. Mankind, with hardly an
  exception, have not remarked the periods of the other stars, and
  they have no name for them, and do not measure them against one
  another by the help of number, and hence they can scarcely be
  said to know that their wanderings, being infinite in number and
  admirable for their variety, make up time. And yet there is no
  difficulty in seeing that the perfect number of time fulfils the
  perfect year when all the eight revolutions, having their
  relative degrees of swiftness, are accomplished together and
  attain their completion at the same time, measured by the
  rotation of the same and equally moving. After this manner, and
  for these reasons, came into being such of the stars as in their
  heavenly progress received reversals of motion, to the end that
  the created heaven might imitate the eternal nature, and be as
  like as possible to the perfect and intelligible animal.

  Thus far and until the birth of time the created universe was
  made in the likeness of the original, but inasmuch as all animals
  were not yet comprehended therein, it was still unlike. What
  remained, the creator then proceeded to fashion after the nature
  of the pattern. Now as in the ideal animal the mind perceives
  ideas or species of a certain nature and number, he thought that
  this created animal ought to have species of a like nature and
  number. There are four such; one of them is the heavenly race of
  the gods; another, the race of birds whose way is in the air; the
  third, the watery species; and the fourth, the pedestrian and
  land creatures. Of the heavenly and divine, he created the
  greater part out of fire, that they might be the brightest of all
  things and fairest to behold, and he fashioned them after the
  likeness of the universe in the figure of a circle, and made them
  follow the intelligent motion of the supreme, distributing them
  over the whole circumference of heaven, which was to be a true
  cosmos or glorious world spangled with them all over. And he gave
  to each of them two movements: the first, a movement on the same
  spot after the same manner, whereby they ever continue to think
  consistently the same thoughts about the same things; the second,
  a forward movement, in which they are controlled by the
  revolution of the same and the like; but by the other five
  motions they were unaffected, in order that each of them might
  attain the highest perfection. And for this reason the fixed
  stars were created, to be divine and eternal animals,
  ever-abiding and revolving after the same manner and on the same
  spot; and the other stars which reverse their motion and are
  subject to deviations of this kind, were created in the manner
  already described. The earth, which is our nurse, clinging (or
  ‘circling’) around the pole which is extended through the
  universe, he framed to be the guardian and artificer of night and
  day, first and eldest of gods that are in the interior of heaven.
  Vain would be the attempt to tell all the figures of them
  circling as in dance, and their juxtapositions, and the return of
  them in their revolutions upon themselves, and their
  approximations, and to say which of these deities in their
  conjunctions meet, and which of them are in opposition, and in
  what order they get behind and before one another, and when they
  are severally eclipsed to our sight and again reappear, sending
  terrors and intimations of the future to those who cannot
  calculate their movements—to attempt to tell of all this without
  a visible representation of the heavenly system would be labour
  in vain. Enough on this head; and now let what we have said about
  the nature of the created and visible gods have an end.

  To know or tell the origin of the other divinities is beyond us,
  and we must accept the traditions of the men of old time who
  affirm themselves to be the offspring of the gods—that is what
  they say—and they must surely have known their own ancestors. How
  can we doubt the word of the children of the gods? Although they
  give no probable or certain proofs, still, as they declare that
  they are speaking of what took place in their own family, we must
  conform to custom and believe them. In this manner, then,
  according to them, the genealogy of these gods is to be received
  and set forth.

  Oceanus and Tethys were the children of Earth and Heaven, and
  from these sprang Phorcys and Cronos and Rhea, and all that
  generation; and from Cronos and Rhea sprang Zeus and Here, and
  all those who are said to be their brethren, and others who were
  the children of these.

  Now, when all of them, both those who visibly appear in their
  revolutions as well as those other gods who are of a more
  retiring nature, had come into being, the creator of the universe
  addressed them in these words: ‘Gods, children of gods, who are
  my works, and of whom I am the artificer and father, my creations
  are indissoluble, if so I will. All that is bound may be undone,
  but only an evil being would wish to undo that which is
  harmonious and happy. Wherefore, since ye are but creatures, ye
  are not altogether immortal and indissoluble, but ye shall
  certainly not be dissolved, nor be liable to the fate of death,
  having in my will a greater and mightier bond than those with
  which ye were bound at the time of your birth. And now listen to
  my instructions:—Three tribes of mortal beings remain to be
  created—without them the universe will be incomplete, for it will
  not contain every kind of animal which it ought to contain, if it
  is to be perfect. On the other hand, if they were created by me
  and received life at my hands, they would be on an equality with
  the gods. In order then that they may be mortal, and that this
  universe may be truly universal, do ye, according to your
  natures, betake yourselves to the formation of animals, imitating
  the power which was shown by me in creating you. The part of them
  worthy of the name immortal, which is called divine and is the
  guiding principle of those who are willing to follow justice and
  you—of that divine part I will myself sow the seed, and having
  made a beginning, I will hand the work over to you. And do ye
  then interweave the mortal with the immortal, and make and beget
  living creatures, and give them food, and make them to grow, and
  receive them again in death.’

  Thus he spake, and once more into the cup in which he had
  previously mingled the soul of the universe he poured the remains
  of the elements, and mingled them in much the same manner; they
  were not, however, pure as before, but diluted to the second and
  third degree. And having made it he divided the whole mixture
  into souls equal in number to the stars, and assigned each soul
  to a star; and having there placed them as in a chariot, he
  showed them the nature of the universe, and declared to them the
  laws of destiny, according to which their first birth would be
  one and the same for all,—no one should suffer a disadvantage at
  his hands; they were to be sown in the instruments of time
  severally adapted to them, and to come forth the most religious
  of animals; and as human nature was of two kinds, the superior
  race would hereafter be called man. Now, when they should be
  implanted in bodies by necessity, and be always gaining or losing
  some part of their bodily substance, then in the first place it
  would be necessary that they should all have in them one and the
  same faculty of sensation, arising out of irresistible
  impressions; in the second place, they must have love, in which
  pleasure and pain mingle; also fear and anger, and the feelings
  which are akin or opposite to them; if they conquered these they
  would live righteously, and if they were conquered by them,
  unrighteously. He who lived well during his appointed time was to
  return and dwell in his native star, and there he would have a
  blessed and congenial existence. But if he failed in attaining
  this, at the second birth he would pass into a woman, and if,
  when in that state of being, he did not desist from evil, he
  would continually be changed into some brute who resembled him in
  the evil nature which he had acquired, and would not cease from
  his toils and transformations until he followed the revolution of
  the same and the like within him, and overcame by the help of
  reason the turbulent and irrational mob of later accretions, made
  up of fire and air and water and earth, and returned to the form
  of his first and better state. Having given all these laws to his
  creatures, that he might be guiltless of future evil in any of
  them, the creator sowed some of them in the earth, and some in
  the moon, and some in the other instruments of time; and when he
  had sown them he committed to the younger gods the fashioning of
  their mortal bodies, and desired them to furnish what was still
  lacking to the human soul, and having made all the suitable
  additions, to rule over them, and to pilot the mortal animal in
  the best and wisest manner which they could, and avert from him
  all but self-inflicted evils.

  When the creator had made all these ordinances he remained in his
  own accustomed nature, and his children heard and were obedient
  to their father’s word, and receiving from him the immortal
  principle of a mortal creature, in imitation of their own creator
  they borrowed portions of fire, and earth, and water, and air
  from the world, which were hereafter to be restored—these they
  took and welded them together, not with the indissoluble chains
  by which they were themselves bound, but with little pegs too
  small to be visible, making up out of all the four elements each
  separate body, and fastening the courses of the immortal soul in
  a body which was in a state of perpetual influx and efflux. Now
  these courses, detained as in a vast river, neither overcame nor
  were overcome; but were hurrying and hurried to and fro, so that
  the whole animal was moved and progressed, irregularly however
  and irrationally and anyhow, in all the six directions of motion,
  wandering backwards and forwards, and right and left, and up and
  down, and in all the six directions. For great as was the
  advancing and retiring flood which provided nourishment, the
  affections produced by external contact caused still greater
  tumult—when the body of any one met and came into collision with
  some external fire, or with the solid earth or the gliding
  waters, or was caught in the tempest borne on the air, and the
  motions produced by any of these impulses were carried through
  the body to the soul. All such motions have consequently received
  the general name of ‘sensations,’ which they still retain. And
  they did in fact at that time create a very great and mighty
  movement; uniting with the ever-flowing stream in stirring up and
  violently shaking the courses of the soul, they completely
  stopped the revolution of the same by their opposing current, and
  hindered it from predominating and advancing; and they so
  disturbed the nature of the other or diverse, that the three
  double intervals (i.e. between 1, 2, 4, 8), and the three triple
  intervals (i.e. between 1, 3, 9, 27), together with the mean
  terms and connecting links which are expressed by the ratios of
  3:2, and 4:3, and of 9:8—these, although they cannot be wholly
  undone except by him who united them, were twisted by them in all
  sorts of ways, and the circles were broken and disordered in
  every possible manner, so that when they moved they were tumbling
  to pieces, and moved irrationally, at one time in a reverse
  direction, and then again obliquely, and then upside down, as you
  might imagine a person who is upside down and has his head
  leaning upon the ground and his feet up against something in the
  air; and when he is in such a position, both he and the spectator
  fancy that the right of either is his left, and the left right.
  If, when powerfully experiencing these and similar effects, the
  revolutions of the soul come in contact with some external thing,
  either of the class of the same or of the other, they speak of
  the same or of the other in a manner the very opposite of the
  truth; and they become false and foolish, and there is no course
  or revolution in them which has a guiding or directing power; and
  if again any sensations enter in violently from without and drag
  after them the whole vessel of the soul, then the courses of the
  soul, though they seem to conquer, are really conquered.

  And by reason of all these affections, the soul, when encased in
  a mortal body, now, as in the beginning, is at first without
  intelligence; but when the flood of growth and nutriment abates,
  and the courses of the soul, calming down, go their own way and
  become steadier as time goes on, then the several circles return
  to their natural form, and their revolutions are corrected, and
  they call the same and the other by their right names, and make
  the possessor of them to become a rational being. And if these
  combine in him with any true nurture or education, he attains the
  fulness and health of the perfect man, and escapes the worst
  disease of all; but if he neglects education he walks lame to the
  end of his life, and returns imperfect and good for nothing to
  the world below. This, however, is a later stage; at present we
  must treat more exactly the subject before us, which involves a
  preliminary enquiry into the generation of the body and its
  members, and as to how the soul was created—for what reason and
  by what providence of the gods; and holding fast to probability,
  we must pursue our way.

  First, then, the gods, imitating the spherical shape of the
  universe, enclosed the two divine courses in a spherical body,
  that, namely, which we now term the head, being the most divine
  part of us and the lord of all that is in us: to this the gods,
  when they put together the body, gave all the other members to be
  servants, considering that it partook of every sort of motion. In
  order then that it might not tumble about among the high and deep
  places of the earth, but might be able to get over the one and
  out of the other, they provided the body to be its vehicle and
  means of locomotion; which consequently had length and was
  furnished with four limbs extended and flexible; these God
  contrived to be instruments of locomotion with which it might
  take hold and find support, and so be able to pass through all
  places, carrying on high the dwelling-place of the most sacred
  and divine part of us. Such was the origin of legs and hands,
  which for this reason were attached to every man; and the gods,
  deeming the front part of man to be more honourable and more fit
  to command than the hinder part, made us to move mostly in a
  forward direction. Wherefore man must needs have his front part
  unlike and distinguished from the rest of his body.

  And so in the vessel of the head, they first of all put a face in
  which they inserted organs to minister in all things to the
  providence of the soul, and they appointed this part, which has
  authority, to be by nature the part which is in front. And of the
  organs they first contrived the eyes to give light, and the
  principle according to which they were inserted was as follows:
  So much of fire as would not burn, but gave a gentle light, they
  formed into a substance akin to the light of every-day life; and
  the pure fire which is within us and related thereto they made to
  flow through the eyes in a stream smooth and dense, compressing
  the whole eye, and especially the centre part, so that it kept
  out everything of a coarser nature, and allowed to pass only this
  pure element. When the light of day surrounds the stream of
  vision, then like falls upon like, and they coalesce, and one
  body is formed by natural affinity in the line of vision,
  wherever the light that falls from within meets with an external
  object. And the whole stream of vision, being similarly affected
  in virtue of similarity, diffuses the motions of what it touches
  or what touches it over the whole body, until they reach the
  soul, causing that perception which we call sight. But when night
  comes on and the external and kindred fire departs, then the
  stream of vision is cut off; for going forth to an unlike element
  it is changed and extinguished, being no longer of one nature
  with the surrounding atmosphere which is now deprived of fire:
  and so the eye no longer sees, and we feel disposed to sleep. For
  when the eyelids, which the gods invented for the preservation of
  sight, are closed, they keep in the internal fire; and the power
  of the fire diffuses and equalizes the inward motions; when they
  are equalized, there is rest, and when the rest is profound,
  sleep comes over us scarce disturbed by dreams; but where the
  greater motions still remain, of whatever nature and in whatever
  locality, they engender corresponding visions in dreams, which
  are remembered by us when we are awake and in the external world.
  And now there is no longer any difficulty in understanding the
  creation of images in mirrors and all smooth and bright surfaces.
  For from the communion of the internal and external fires, and
  again from the union of them and their numerous transformations
  when they meet in the mirror, all these appearances of necessity
  arise, when the fire from the face coalesces with the fire from
  the eye on the bright and smooth surface. And right appears left
  and left right, because the visual rays come into contact with
  the rays emitted by the object in a manner contrary to the usual
  mode of meeting; but the right appears right, and the left left,
  when the position of one of the two concurring lights is
  reversed; and this happens when the mirror is concave and its
  smooth surface repels the right stream of vision to the left
  side, and the left to the right (He is speaking of two kinds of
  mirrors, first the plane, secondly the concave; and the latter is
  supposed to be placed, first horizontally, and then vertically.).
  Or if the mirror be turned vertically, then the concavity makes
  the countenance appear to be all upside down, and the lower rays
  are driven upwards and the upper downwards.

  All these are to be reckoned among the second and co-operative
  causes which God, carrying into execution the idea of the best as
  far as possible, uses as his ministers. They are thought by most
  men not to be the second, but the prime causes of all things,
  because they freeze and heat, and contract and dilate, and the
  like. But they are not so, for they are incapable of reason or
  intellect; the only being which can properly have mind is the
  invisible soul, whereas fire and water, and earth and air, are
  all of them visible bodies. The lover of intellect and knowledge
  ought to explore causes of intelligent nature first of all, and,
  secondly, of those things which, being moved by others, are
  compelled to move others. And this is what we too must do. Both
  kinds of causes should be acknowledged by us, but a distinction
  should be made between those which are endowed with mind and are
  the workers of things fair and good, and those which are deprived
  of intelligence and always produce chance effects without order
  or design. Of the second or co-operative causes of sight, which
  help to give to the eyes the power which they now possess, enough
  has been said. I will therefore now proceed to speak of the
  higher use and purpose for which God has given them to us. The
  sight in my opinion is the source of the greatest benefit to us,
  for had we never seen the stars, and the sun, and the heaven,
  none of the words which we have spoken about the universe would
  ever have been uttered. But now the sight of day and night, and
  the months and the revolutions of the years, have created number,
  and have given us a conception of time, and the power of
  enquiring about the nature of the universe; and from this source
  we have derived philosophy, than which no greater good ever was
  or will be given by the gods to mortal man. This is the greatest
  boon of sight: and of the lesser benefits why should I speak?
  even the ordinary man if he were deprived of them would bewail
  his loss, but in vain. Thus much let me say however: God invented
  and gave us sight to the end that we might behold the courses of
  intelligence in the heaven, and apply them to the courses of our
  own intelligence which are akin to them, the unperturbed to the
  perturbed; and that we, learning them and partaking of the
  natural truth of reason, might imitate the absolutely unerring
  courses of God and regulate our own vagaries. The same may be
  affirmed of speech and hearing: they have been given by the gods
  to the same end and for a like reason. For this is the principal
  end of speech, whereto it most contributes. Moreover, so much of
  music as is adapted to the sound of the voice and to the sense of
  hearing is granted to us for the sake of harmony; and harmony,
  which has motions akin to the revolutions of our souls, is not
  regarded by the intelligent votary of the Muses as given by them
  with a view to irrational pleasure, which is deemed to be the
  purpose of it in our day, but as meant to correct any discord
  which may have arisen in the courses of the soul, and to be our
  ally in bringing her into harmony and agreement with herself; and
  rhythm too was given by them for the same reason, on account of
  the irregular and graceless ways which prevail among mankind
  generally, and to help us against them.

  Thus far in what we have been saying, with small exception, the
  works of intelligence have been set forth; and now we must place
  by the side of them in our discourse the things which come into
  being through necessity—for the creation is mixed, being made up
  of necessity and mind. Mind, the ruling power, persuaded
  necessity to bring the greater part of created things to
  perfection, and thus and after this manner in the beginning, when
  the influence of reason got the better of necessity, the universe
  was created. But if a person will truly tell of the way in which
  the work was accomplished, he must include the other influence of
  the variable cause as well. Wherefore, we must return again and
  find another suitable beginning, as about the former matters, so
  also about these. To which end we must consider the nature of
  fire, and water, and air, and earth, such as they were prior to
  the creation of the heaven, and what was happening to them in
  this previous state; for no one has as yet explained the manner
  of their generation, but we speak of fire and the rest of them,
  whatever they mean, as though men knew their natures, and we
  maintain them to be the first principles and letters or elements
  of the whole, when they cannot reasonably be compared by a man of
  any sense even to syllables or first compounds. And let me say
  thus much: I will not now speak of the first principle or
  principles of all things, or by whatever name they are to be
  called, for this reason—because it is difficult to set forth my
  opinion according to the method of discussion which we are at
  present employing. Do not imagine, any more than I can bring
  myself to imagine, that I should be right in undertaking so great
  and difficult a task. Remembering what I said at first about
  probability, I will do my best to give as probable an explanation
  as any other—or rather, more probable; and I will first go back
  to the beginning and try to speak of each thing and of all. Once
  more, then, at the commencement of my discourse, I call upon God,
  and beg him to be our saviour out of a strange and unwonted
  enquiry, and to bring us to the haven of probability. So now let
  us begin again.

  This new beginning of our discussion of the universe requires a
  fuller division than the former; for then we made two classes,
  now a third must be revealed. The two sufficed for the former
  discussion: one, which we assumed, was a pattern intelligible and
  always the same; and the second was only the imitation of the
  pattern, generated and visible. There is also a third kind which
  we did not distinguish at the time, conceiving that the two would
  be enough. But now the argument seems to require that we should
  set forth in words another kind, which is difficult of
  explanation and dimly seen. What nature are we to attribute to
  this new kind of being? We reply, that it is the receptacle, and
  in a manner the nurse, of all generation. I have spoken the
  truth; but I must express myself in clearer language, and this
  will be an arduous task for many reasons, and in particular
  because I must first raise questions concerning fire and the
  other elements, and determine what each of them is; for to say,
  with any probability or certitude, which of them should be called
  water rather than fire, and which should be called any of them
  rather than all or some one of them, is a difficult matter. How,
  then, shall we settle this point, and what questions about the
  elements may be fairly raised?

  In the first place, we see that what we just now called water, by
  condensation, I suppose, becomes stone and earth; and this same
  element, when melted and dispersed, passes into vapour and air.
  Air, again, when inflamed, becomes fire; and again fire, when
  condensed and extinguished, passes once more into the form of
  air; and once more, air, when collected and condensed, produces
  cloud and mist; and from these, when still more compressed, comes
  flowing water, and from water comes earth and stones once more;
  and thus generation appears to be transmitted from one to the
  other in a circle. Thus, then, as the several elements never
  present themselves in the same form, how can any one have the
  assurance to assert positively that any of them, whatever it may
  be, is one thing rather than another? No one can. But much the
  safest plan is to speak of them as follows:—Anything which we see
  to be continually changing, as, for example, fire, we must not
  call ‘this’ or ‘that,’ but rather say that it is ‘of such a
  nature’; nor let us speak of water as ‘this’; but always as
  ‘such’; nor must we imply that there is any stability in any of
  those things which we indicate by the use of the words ‘this’ and
  ‘that,’ supposing ourselves to signify something thereby; for
  they are too volatile to be detained in any such expressions as
  ‘this,’ or ‘that,’ or ‘relative to this,’ or any other mode of
  speaking which represents them as permanent. We ought not to
  apply ‘this’ to any of them, but rather the word ‘such’; which
  expresses the similar principle circulating in each and all of
  them; for example, that should be called ‘fire’ which is of such
  a nature always, and so of everything that has generation. That
  in which the elements severally grow up, and appear, and decay,
  is alone to be called by the name ‘this’ or ‘that’; but that
  which is of a certain nature, hot or white, or anything which
  admits of opposite qualities, and all things that are compounded
  of them, ought not to be so denominated. Let me make another
  attempt to explain my meaning more clearly. Suppose a person to
  make all kinds of figures of gold and to be always transmuting
  one form into all the rest;—somebody points to one of them and
  asks what it is. By far the safest and truest answer is, That is
  gold; and not to call the triangle or any other figures which are
  formed in the gold ‘these,’ as though they had existence, since
  they are in process of change while he is making the assertion;
  but if the questioner be willing to take the safe and indefinite
  expression, ‘such,’ we should be satisfied. And the same argument
  applies to the universal nature which receives all bodies—that
  must be always called the same; for, while receiving all things,
  she never departs at all from her own nature, and never in any
  way, or at any time, assumes a form like that of any of the
  things which enter into her; she is the natural recipient of all
  impressions, and is stirred and informed by them, and appears
  different from time to time by reason of them. But the forms
  which enter into and go out of her are the likenesses of real
  existences modelled after their patterns in a wonderful and
  inexplicable manner, which we will hereafter investigate. For the
  present we have only to conceive of three natures: first, that
  which is in process of generation; secondly, that in which the
  generation takes place; and thirdly, that of which the thing
  generated is a resemblance. And we may liken the receiving
  principle to a mother, and the source or spring to a father, and
  the intermediate nature to a child; and may remark further, that
  if the model is to take every variety of form, then the matter in
  which the model is fashioned will not be duly prepared, unless it
  is formless, and free from the impress of any of those shapes
  which it is hereafter to receive from without. For if the matter
  were like any of the supervening forms, then whenever any
  opposite or entirely different nature was stamped upon its
  surface, it would take the impression badly, because it would
  intrude its own shape. Wherefore, that which is to receive all
  forms should have no form; as in making perfumes they first
  contrive that the liquid substance which is to receive the scent
  shall be as inodorous as possible; or as those who wish to
  impress figures on soft substances do not allow any previous
  impression to remain, but begin by making the surface as even and
  smooth as possible. In the same way that which is to receive
  perpetually and through its whole extent the resemblances of all
  eternal beings ought to be devoid of any particular form.
  Wherefore, the mother and receptacle of all created and visible
  and in any way sensible things, is not to be termed earth, or
  air, or fire, or water, or any of their compounds or any of the
  elements from which these are derived, but is an invisible and
  formless being which receives all things and in some mysterious
  way partakes of the intelligible, and is most incomprehensible.
  In saying this we shall not be far wrong; as far, however, as we
  can attain to a knowledge of her from the previous
  considerations, we may truly say that fire is that part of her
  nature which from time to time is inflamed, and water that which
  is moistened, and that the mother substance becomes earth and
  air, in so far as she receives the impressions of them.

  Let us consider this question more precisely. Is there any
  self-existent fire? and do all those things which we call
  self-existent exist? or are only those things which we see, or in
  some way perceive through the bodily organs, truly existent, and
  nothing whatever besides them? And is all that which we call an
  intelligible essence nothing at all, and only a name? Here is a
  question which we must not leave unexamined or undetermined, nor
  must we affirm too confidently that there can be no decision;
  neither must we interpolate in our present long discourse a
  digression equally long, but if it is possible to set forth a
  great principle in a few words, that is just what we want.

  Thus I state my view:—If mind and true opinion are two distinct
  classes, then I say that there certainly are these self-existent
  ideas unperceived by sense, and apprehended only by the mind; if,
  however, as some say, true opinion differs in no respect from
  mind, then everything that we perceive through the body is to be
  regarded as most real and certain. But we must affirm them to be
  distinct, for they have a distinct origin and are of a different
  nature; the one is implanted in us by instruction, the other by
  persuasion; the one is always accompanied by true reason, the
  other is without reason; the one cannot be overcome by
  persuasion, but the other can: and lastly, every man may be said
  to share in true opinion, but mind is the attribute of the gods
  and of very few men. Wherefore also we must acknowledge that
  there is one kind of being which is always the same, uncreated
  and indestructible, never receiving anything into itself from
  without, nor itself going out to any other, but invisible and
  imperceptible by any sense, and of which the contemplation is
  granted to intelligence only. And there is another nature of the
  same name with it, and like to it, perceived by sense, created,
  always in motion, becoming in place and again vanishing out of
  place, which is apprehended by opinion and sense. And there is a
  third nature, which is space, and is eternal, and admits not of
  destruction and provides a home for all created things, and is
  apprehended without the help of sense, by a kind of spurious
  reason, and is hardly real; which we beholding as in a dream, say
  of all existence that it must of necessity be in some place and
  occupy a space, but that what is neither in heaven nor in earth
  has no existence. Of these and other things of the same kind,
  relating to the true and waking reality of nature, we have only
  this dreamlike sense, and we are unable to cast off sleep and
  determine the truth about them. For an image, since the reality,
  after which it is modelled, does not belong to it, and it exists
  ever as the fleeting shadow of some other, must be inferred to be
  in another (i.e. in space), grasping existence in some way or
  other, or it could not be at all. But true and exact reason,
  vindicating the nature of true being, maintains that while two
  things (i.e. the image and space) are different they cannot exist
  one of them in the other and so be one and also two at the same
  time.

  Thus have I concisely given the result of my thoughts; and my
  verdict is that being and space and generation, these three,
  existed in their three ways before the heaven; and that the nurse
  of generation, moistened by water and inflamed by fire, and
  receiving the forms of earth and air, and experiencing all the
  affections which accompany these, presented a strange variety of
  appearances; and being full of powers which were neither similar
  nor equally balanced, was never in any part in a state of
  equipoise, but swaying unevenly hither and thither, was shaken by
  them, and by its motion again shook them; and the elements when
  moved were separated and carried continually, some one way, some
  another; as, when grain is shaken and winnowed by fans and other
  instruments used in the threshing of corn, the close and heavy
  particles are borne away and settle in one direction, and the
  loose and light particles in another. In this manner, the four
  kinds or elements were then shaken by the receiving vessel,
  which, moving like a winnowing machine, scattered far away from
  one another the elements most unlike, and forced the most similar
  elements into close contact. Wherefore also the various elements
  had different places before they were arranged so as to form the
  universe. At first, they were all without reason and measure. But
  when the world began to get into order, fire and water and earth
  and air had only certain faint traces of themselves, and were
  altogether such as everything might be expected to be in the
  absence of God; this, I say, was their nature at that time, and
  God fashioned them by form and number. Let it be consistently
  maintained by us in all that we say that God made them as far as
  possible the fairest and best, out of things which were not fair
  and good. And now I will endeavour to show you the disposition
  and generation of them by an unaccustomed argument, which I am
  compelled to use; but I believe that you will be able to follow
  me, for your education has made you familiar with the methods of
  science.

  In the first place, then, as is evident to all, fire and earth
  and water and air are bodies. And every sort of body possesses
  solidity, and every solid must necessarily be contained in
  planes; and every plane rectilinear figure is composed of
  triangles; and all triangles are originally of two kinds, both of
  which are made up of one right and two acute angles; one of them
  has at either end of the base the half of a divided right angle,
  having equal sides, while in the other the right angle is divided
  into unequal parts, having unequal sides. These, then, proceeding
  by a combination of probability with demonstration, we assume to
  be the original elements of fire and the other bodies; but the
  principles which are prior to these God only knows, and he of men
  who is the friend of God. And next we have to determine what are
  the four most beautiful bodies which are unlike one another, and
  of which some are capable of resolution into one another; for
  having discovered thus much, we shall know the true origin of
  earth and fire and of the proportionate and intermediate
  elements. And then we shall not be willing to allow that there
  are any distinct kinds of visible bodies fairer than these.
  Wherefore we must endeavour to construct the four forms of bodies
  which excel in beauty, and then we shall be able to say that we
  have sufficiently apprehended their nature. Now of the two
  triangles, the isosceles has one form only; the scalene or
  unequal-sided has an infinite number. Of the infinite forms we
  must select the most beautiful, if we are to proceed in due
  order, and any one who can point out a more beautiful form than
  ours for the construction of these bodies, shall carry off the
  palm, not as an enemy, but as a friend. Now, the one which we
  maintain to be the most beautiful of all the many triangles (and
  we need not speak of the others) is that of which the double
  forms a third triangle which is equilateral; the reason of this
  would be long to tell; he who disproves what we are saying, and
  shows that we are mistaken, may claim a friendly victory. Then
  let us choose two triangles, out of which fire and the other
  elements have been constructed, one isosceles, the other having
  the square of the longer side equal to three times the square of
  the lesser side.

  Now is the time to explain what was before obscurely said: there
  was an error in imagining that all the four elements might be
  generated by and into one another; this, I say, was an erroneous
  supposition, for there are generated from the triangles which we
  have selected four kinds—three from the one which has the sides
  unequal; the fourth alone is framed out of the isosceles
  triangle. Hence they cannot all be resolved into one another, a
  great number of small bodies being combined into a few large
  ones, or the converse. But three of them can be thus resolved and
  compounded, for they all spring from one, and when the greater
  bodies are broken up, many small bodies will spring up out of
  them and take their own proper figures; or, again, when many
  small bodies are dissolved into their triangles, if they become
  one, they will form one large mass of another kind. So much for
  their passage into one another. I have now to speak of their
  several kinds, and show out of what combinations of numbers each
  of them was formed. The first will be the simplest and smallest
  construction, and its element is that triangle which has its
  hypotenuse twice the lesser side. When two such triangles are
  joined at the diagonal, and this is repeated three times, and the
  triangles rest their diagonals and shorter sides on the same
  point as a centre, a single equilateral triangle is formed out of
  six triangles; and four equilateral triangles, if put together,
  make out of every three plane angles one solid angle, being that
  which is nearest to the most obtuse of plane angles; and out of
  the combination of these four angles arises the first solid form
  which distributes into equal and similar parts the whole circle
  in which it is inscribed. The second species of solid is formed
  out of the same triangles, which unite as eight equilateral
  triangles and form one solid angle out of four plane angles, and
  out of six such angles the second body is completed. And the
  third body is made up of 120 triangular elements, forming twelve
  solid angles, each of them included in five plane equilateral
  triangles, having altogether twenty bases, each of which is an
  equilateral triangle. The one element (that is, the triangle
  which has its hypotenuse twice the lesser side) having generated
  these figures, generated no more; but the isosceles triangle
  produced the fourth elementary figure, which is compounded of
  four such triangles, joining their right angles in a centre, and
  forming one equilateral quadrangle. Six of these united form
  eight solid angles, each of which is made by the combination of
  three plane right angles; the figure of the body thus composed is
  a cube, having six plane quadrangular equilateral bases. There
  was yet a fifth combination which God used in the delineation of
  the universe.

  Now, he who, duly reflecting on all this, enquires whether the
  worlds are to be regarded as indefinite or definite in number,
  will be of opinion that the notion of their indefiniteness is
  characteristic of a sadly indefinite and ignorant mind. He,
  however, who raises the question whether they are to be truly
  regarded as one or five, takes up a more reasonable position.
  Arguing from probabilities, I am of opinion that they are one;
  another, regarding the question from another point of view, will
  be of another mind. But, leaving this enquiry, let us proceed to
  distribute the elementary forms, which have now been created in
  idea, among the four elements.

  To earth, then, let us assign the cubical form; for earth is the
  most immoveable of the four and the most plastic of all bodies,
  and that which has the most stable bases must of necessity be of
  such a nature. Now, of the triangles which we assumed at first,
  that which has two equal sides is by nature more firmly based
  than that which has unequal sides; and of the compound figures
  which are formed out of either, the plane equilateral quadrangle
  has necessarily a more stable basis than the equilateral
  triangle, both in the whole and in the parts. Wherefore, in
  assigning this figure to earth, we adhere to probability; and to
  water we assign that one of the remaining forms which is the
  least moveable; and the most moveable of them to fire; and to air
  that which is intermediate. Also we assign the smallest body to
  fire, and the greatest to water, and the intermediate in size to
  air; and, again, the acutest body to fire, and the next in
  acuteness to air, and the third to water. Of all these elements,
  that which has the fewest bases must necessarily be the most
  moveable, for it must be the acutest and most penetrating in
  every way, and also the lightest as being composed of the
  smallest number of similar particles: and the second body has
  similar properties in a second degree, and the third body in the
  third degree. Let it be agreed, then, both according to strict
  reason and according to probability, that the pyramid is the
  solid which is the original element and seed of fire; and let us
  assign the element which was next in the order of generation to
  air, and the third to water. We must imagine all these to be so
  small that no single particle of any of the four kinds is seen by
  us on account of their smallness: but when many of them are
  collected together their aggregates are seen. And the ratios of
  their numbers, motions, and other properties, everywhere God, as
  far as necessity allowed or gave consent, has exactly perfected,
  and harmonized in due proportion.

  From all that we have just been saying about the elements or
  kinds, the most probable conclusion is as follows:—earth, when
  meeting with fire and dissolved by its sharpness, whether the
  dissolution take place in the fire itself or perhaps in some mass
  of air or water, is borne hither and thither, until its parts,
  meeting together and mutually harmonising, again become earth;
  for they can never take any other form. But water, when divided
  by fire or by air, on re-forming, may become one part fire and
  two parts air; and a single volume of air divided becomes two of
  fire. Again, when a small body of fire is contained in a larger
  body of air or water or earth, and both are moving, and the fire
  struggling is overcome and broken up, then two volumes of fire
  form one volume of air; and when air is overcome and cut up into
  small pieces, two and a half parts of air are condensed into one
  part of water. Let us consider the matter in another way. When
  one of the other elements is fastened upon by fire, and is cut by
  the sharpness of its angles and sides, it coalesces with the
  fire, and then ceases to be cut by them any longer. For no
  element which is one and the same with itself can be changed by
  or change another of the same kind and in the same state. But so
  long as in the process of transition the weaker is fighting
  against the stronger, the dissolution continues. Again, when a
  few small particles, enclosed in many larger ones, are in process
  of decomposition and extinction, they only cease from their
  tendency to extinction when they consent to pass into the
  conquering nature, and fire becomes air and air water. But if
  bodies of another kind go and attack them (i.e. the small
  particles), the latter continue to be dissolved until, being
  completely forced back and dispersed, they make their escape to
  their own kindred, or else, being overcome and assimilated to the
  conquering power, they remain where they are and dwell with their
  victors, and from being many become one. And owing to these
  affections, all things are changing their place, for by the
  motion of the receiving vessel the bulk of each class is
  distributed into its proper place; but those things which become
  unlike themselves and like other things, are hurried by the
  shaking into the place of the things to which they grow like.

  Now all unmixed and primary bodies are produced by such causes as
  these. As to the subordinate species which are included in the
  greater kinds, they are to be attributed to the varieties in the
  structure of the two original triangles. For either structure did
  not originally produce the triangle of one size only, but some
  larger and some smaller, and there are as many sizes as there are
  species of the four elements. Hence when they are mingled with
  themselves and with one another there is an endless variety of
  them, which those who would arrive at the probable truth of
  nature ought duly to consider.

  Unless a person comes to an understanding about the nature and
  conditions of rest and motion, he will meet with many
  difficulties in the discussion which follows. Something has been
  said of this matter already, and something more remains to be
  said, which is, that motion never exists in what is uniform. For
  to conceive that anything can be moved without a mover is hard or
  indeed impossible, and equally impossible to conceive that there
  can be a mover unless there be something which can be
  moved—motion cannot exist where either of these are wanting, and
  for these to be uniform is impossible; wherefore we must assign
  rest to uniformity and motion to the want of uniformity. Now
  inequality is the cause of the nature which is wanting in
  uniformity; and of this we have already described the origin. But
  there still remains the further point—why things when divided
  after their kinds do not cease to pass through one another and to
  change their place—which we will now proceed to explain. In the
  revolution of the universe are comprehended all the four
  elements, and this being circular and having a tendency to come
  together, compresses everything and will not allow any place to
  be left void. Wherefore, also, fire above all things penetrates
  everywhere, and air next, as being next in rarity of the
  elements; and the two other elements in like manner penetrate
  according to their degrees of rarity. For those things which are
  composed of the largest particles have the largest void left in
  their compositions, and those which are composed of the smallest
  particles have the least. And the contraction caused by the
  compression thrusts the smaller particles into the interstices of
  the larger. And thus, when the small parts are placed side by
  side with the larger, and the lesser divide the greater and the
  greater unite the lesser, all the elements are borne up and down
  and hither and thither towards their own places; for the change
  in the size of each changes its position in space. And these
  causes generate an inequality which is always maintained, and is
  continually creating a perpetual motion of the elements in all
  time.

  In the next place we have to consider that there are divers kinds
  of fire. There are, for example, first, flame; and secondly,
  those emanations of flame which do not burn but only give light
  to the eyes; thirdly, the remains of fire, which are seen in
  red-hot embers after the flame has been extinguished. There are
  similar differences in the air; of which the brightest part is
  called the aether, and the most turbid sort mist and darkness;
  and there are various other nameless kinds which arise from the
  inequality of the triangles. Water, again, admits in the first
  place of a division into two kinds; the one liquid and the other
  fusile. The liquid kind is composed of the small and unequal
  particles of water; and moves itself and is moved by other bodies
  owing to the want of uniformity and the shape of its particles;
  whereas the fusile kind, being formed of large and uniform
  particles, is more stable than the other, and is heavy and
  compact by reason of its uniformity. But when fire gets in and
  dissolves the particles and destroys the uniformity, it has
  greater mobility, and becoming fluid is thrust forth by the
  neighbouring air and spreads upon the earth; and this dissolution
  of the solid masses is called melting, and their spreading out
  upon the earth flowing. Again, when the fire goes out of the
  fusile substance, it does not pass into a vacuum, but into the
  neighbouring air; and the air which is displaced forces together
  the liquid and still moveable mass into the place which was
  occupied by the fire, and unites it with itself. Thus compressed
  the mass resumes its equability, and is again at unity with
  itself, because the fire which was the author of the inequality
  has retreated; and this departure of the fire is called cooling,
  and the coming together which follows upon it is termed
  congealment. Of all the kinds termed fusile, that which is the
  densest and is formed out of the finest and most uniform parts is
  that most precious possession called gold, which is hardened by
  filtration through rock; this is unique in kind, and has both a
  glittering and a yellow colour. A shoot of gold, which is so
  dense as to be very hard, and takes a black colour, is termed
  adamant. There is also another kind which has parts nearly like
  gold, and of which there are several species; it is denser than
  gold, and it contains a small and fine portion of earth, and is
  therefore harder, yet also lighter because of the great
  interstices which it has within itself; and this substance, which
  is one of the bright and denser kinds of water, when solidified
  is called copper. There is an alloy of earth mingled with it,
  which, when the two parts grow old and are disunited, shows
  itself separately and is called rust. The remaining phenomena of
  the same kind there will be no difficulty in reasoning out by the
  method of probabilities. A man may sometimes set aside
  meditations about eternal things, and for recreation turn to
  consider the truths of generation which are probable only; he
  will thus gain a pleasure not to be repented of, and secure for
  himself while he lives a wise and moderate pastime. Let us grant
  ourselves this indulgence, and go through the probabilities
  relating to the same subjects which follow next in order.

  Water which is mingled with fire, so much as is fine and liquid
  (being so called by reason of its motion and the way in which it
  rolls along the ground), and soft, because its bases give way and
  are less stable than those of earth, when separated from fire and
  air and isolated, becomes more uniform, and by their retirement
  is compressed into itself; and if the condensation be very great,
  the water above the earth becomes hail, but on the earth, ice;
  and that which is congealed in a less degree and is only half
  solid, when above the earth is called snow, and when upon the
  earth, and condensed from dew, hoar-frost. Then, again, there are
  the numerous kinds of water which have been mingled with one
  another, and are distilled through plants which grow in the
  earth; and this whole class is called by the name of juices or
  saps. The unequal admixture of these fluids creates a variety of
  species; most of them are nameless, but four which are of a fiery
  nature are clearly distinguished and have names. First, there is
  wine, which warms the soul as well as the body: secondly, there
  is the oily nature, which is smooth and divides the visual ray,
  and for this reason is bright and shining and of a glistening
  appearance, including pitch, the juice of the castor berry, oil
  itself, and other things of a like kind: thirdly, there is the
  class of substances which expand the contracted parts of the
  mouth, until they return to their natural state, and by reason of
  this property create sweetness;—these are included under the
  general name of honey: and, lastly, there is a frothy nature,
  which differs from all juices, having a burning quality which
  dissolves the flesh; it is called opos (a vegetable acid).

  As to the kinds of earth, that which is filtered through water
  passes into stone in the following manner:—The water which mixes
  with the earth and is broken up in the process changes into air,
  and taking this form mounts into its own place. But as there is
  no surrounding vacuum it thrusts away the neighbouring air, and
  this being rendered heavy, and, when it is displaced, having been
  poured around the mass of earth, forcibly compresses it and
  drives it into the vacant space whence the new air had come up;
  and the earth when compressed by the air into an indissoluble
  union with water becomes rock. The fairer sort is that which is
  made up of equal and similar parts and is transparent; that which
  has the opposite qualities is inferior. But when all the watery
  part is suddenly drawn out by fire, a more brittle substance is
  formed, to which we give the name of pottery. Sometimes also
  moisture may remain, and the earth which has been fused by fire
  becomes, when cool, a certain stone of a black colour. A like
  separation of the water which had been copiously mingled with
  them may occur in two substances composed of finer particles of
  earth and of a briny nature; out of either of them a
  half-solid-body is then formed, soluble in water—the one, soda,
  which is used for purging away oil and earth, the other, salt,
  which harmonizes so well in combinations pleasing to the palate,
  and is, as the law testifies, a substance dear to the gods. The
  compounds of earth and water are not soluble by water, but by
  fire only, and for this reason:—Neither fire nor air melt masses
  of earth; for their particles, being smaller than the interstices
  in its structure, have plenty of room to move without forcing
  their way, and so they leave the earth unmelted and undissolved;
  but particles of water, which are larger, force a passage, and
  dissolve and melt the earth. Wherefore earth when not
  consolidated by force is dissolved by water only; when
  consolidated, by nothing but fire; for this is the only body
  which can find an entrance. The cohesion of water again, when
  very strong, is dissolved by fire only—when weaker, then either
  by air or fire—the former entering the interstices, and the
  latter penetrating even the triangles. But nothing can dissolve
  air, when strongly condensed, which does not reach the elements
  or triangles; or if not strongly condensed, then only fire can
  dissolve it. As to bodies composed of earth and water, while the
  water occupies the vacant interstices of the earth in them which
  are compressed by force, the particles of water which approach
  them from without, finding no entrance, flow around the entire
  mass and leave it undissolved; but the particles of fire,
  entering into the interstices of the water, do to the water what
  water does to earth and fire to air (The text seems to be
  corrupt.), and are the sole causes of the compound body of earth
  and water liquefying and becoming fluid. Now these bodies are of
  two kinds; some of them, such as glass and the fusible sort of
  stones, have less water than they have earth; on the other hand,
  substances of the nature of wax and incense have more of water
  entering into their composition.

  I have thus shown the various classes of bodies as they are
  diversified by their forms and combinations and changes into one
  another, and now I must endeavour to set forth their affections
  and the causes of them. In the first place, the bodies which I
  have been describing are necessarily objects of sense. But we
  have not yet considered the origin of flesh, or what belongs to
  flesh, or of that part of the soul which is mortal. And these
  things cannot be adequately explained without also explaining the
  affections which are concerned with sensation, nor the latter
  without the former: and yet to explain them together is hardly
  possible; for which reason we must assume first one or the other
  and afterwards examine the nature of our hypothesis. In order,
  then, that the affections may follow regularly after the
  elements, let us presuppose the existence of body and soul.

  First, let us enquire what we mean by saying that fire is hot;
  and about this we may reason from the dividing or cutting power
  which it exercises on our bodies. We all of us feel that fire is
  sharp; and we may further consider the fineness of the sides, and
  the sharpness of the angles, and the smallness of the particles,
  and the swiftness of the motion—all this makes the action of fire
  violent and sharp, so that it cuts whatever it meets. And we must
  not forget that the original figure of fire (i.e. the pyramid),
  more than any other form, has a dividing power which cuts our
  bodies into small pieces (Kepmatizei), and thus naturally
  produces that affection which we call heat; and hence the origin
  of the name (thepmos, Kepma). Now, the opposite of this is
  sufficiently manifest; nevertheless we will not fail to describe
  it. For the larger particles of moisture which surround the body,
  entering in and driving out the lesser, but not being able to
  take their places, compress the moist principle in us; and this
  from being unequal and disturbed, is forced by them into a state
  of rest, which is due to equability and compression. But things
  which are contracted contrary to nature are by nature at war, and
  force themselves apart; and to this war and convulsion the name
  of shivering and trembling is given; and the whole affection and
  the cause of the affection are both termed cold. That is called
  hard to which our flesh yields, and soft which yields to our
  flesh; and things are also termed hard and soft relatively to one
  another. That which yields has a small base; but that which rests
  on quadrangular bases is firmly posed and belongs to the class
  which offers the greatest resistance; so too does that which is
  the most compact and therefore most repellent. The nature of the
  light and the heavy will be best understood when examined in
  connexion with our notions of above and below; for it is quite a
  mistake to suppose that the universe is parted into two regions,
  separate from and opposite to each other, the one a lower to
  which all things tend which have any bulk, and an upper to which
  things only ascend against their will. For as the universe is in
  the form of a sphere, all the extremities, being equidistant from
  the centre, are equally extremities, and the centre, which is
  equidistant from them, is equally to be regarded as the opposite
  of them all. Such being the nature of the world, when a person
  says that any of these points is above or below, may he not be
  justly charged with using an improper expression? For the centre
  of the world cannot be rightly called either above or below, but
  is the centre and nothing else; and the circumference is not the
  centre, and has in no one part of itself a different relation to
  the centre from what it has in any of the opposite parts. Indeed,
  when it is in every direction similar, how can one rightly give
  to it names which imply opposition? For if there were any solid
  body in equipoise at the centre of the universe, there would be
  nothing to draw it to this extreme rather than to that, for they
  are all perfectly similar; and if a person were to go round the
  world in a circle, he would often, when standing at the antipodes
  of his former position, speak of the same point as above and
  below; for, as I was saying just now, to speak of the whole which
  is in the form of a globe as having one part above and another
  below is not like a sensible man. The reason why these names are
  used, and the circumstances under which they are ordinarily
  applied by us to the division of the heavens, may be elucidated
  by the following supposition:—if a person were to stand in that
  part of the universe which is the appointed place of fire, and
  where there is the great mass of fire to which fiery bodies
  gather—if, I say, he were to ascend thither, and, having the
  power to do this, were to abstract particles of fire and put them
  in scales and weigh them, and then, raising the balance, were to
  draw the fire by force towards the uncongenial element of the
  air, it would be very evident that he could compel the smaller
  mass more readily than the larger; for when two things are
  simultaneously raised by one and the same power, the smaller body
  must necessarily yield to the superior power with less reluctance
  than the larger; and the larger body is called heavy and said to
  tend downwards, and the smaller body is called light and said to
  tend upwards. And we may detect ourselves who are upon the earth
  doing precisely the same thing. For we often separate earthy
  natures, and sometimes earth itself, and draw them into the
  uncongenial element of air by force and contrary to nature, both
  clinging to their kindred elements. But that which is smaller
  yields to the impulse given by us towards the dissimilar element
  more easily than the larger; and so we call the former light, and
  the place towards which it is impelled we call above, and the
  contrary state and place we call heavy and below respectively.
  Now the relations of these must necessarily vary, because the
  principal masses of the different elements hold opposite
  positions; for that which is light, heavy, below or above in one
  place will be found to be and become contrary and transverse and
  every way diverse in relation to that which is light, heavy,
  below or above in an opposite place. And about all of them this
  has to be considered:—that the tendency of each towards its
  kindred element makes the body which is moved heavy, and the
  place towards which the motion tends below, but things which have
  an opposite tendency we call by an opposite name. Such are the
  causes which we assign to these phenomena. As to the smooth and
  the rough, any one who sees them can explain the reason of them
  to another. For roughness is hardness mingled with irregularity,
  and smoothness is produced by the joint effect of uniformity and
  density.

  The most important of the affections which concern the whole body
  remains to be considered—that is, the cause of pleasure and pain
  in the perceptions of which I have been speaking, and in all
  other things which are perceived by sense through the parts of
  the body, and have both pains and pleasures attendant on them.
  Let us imagine the causes of every affection, whether of sense or
  not, to be of the following nature, remembering that we have
  already distinguished between the nature which is easy and which
  is hard to move; for this is the direction in which we must hunt
  the prey which we mean to take. A body which is of a nature to be
  easily moved, on receiving an impression however slight, spreads
  abroad the motion in a circle, the parts communicating with each
  other, until at last, reaching the principle of mind, they
  announce the quality of the agent. But a body of the opposite
  kind, being immobile, and not extending to the surrounding
  region, merely receives the impression, and does not stir any of
  the neighbouring parts; and since the parts do not distribute the
  original impression to other parts, it has no effect of motion on
  the whole animal, and therefore produces no effect on the
  patient. This is true of the bones and hair and other more earthy
  parts of the human body; whereas what was said above relates
  mainly to sight and hearing, because they have in them the
  greatest amount of fire and air. Now we must conceive of pleasure
  and pain in this way. An impression produced in us contrary to
  nature and violent, if sudden, is painful; and, again, the sudden
  return to nature is pleasant; but a gentle and gradual return is
  imperceptible and vice versa. On the other hand the impression of
  sense which is most easily produced is most readily felt, but is
  not accompanied by pleasure or pain; such, for example, are the
  affections of the sight, which, as we said above, is a body
  naturally uniting with our body in the day-time; for cuttings and
  burnings and other affections which happen to the sight do not
  give pain, nor is there pleasure when the sight returns to its
  natural state; but the sensations are clearest and strongest
  according to the manner in which the eye is affected by the
  object, and itself strikes and touches it; there is no violence
  either in the contraction or dilation of the eye. But bodies
  formed of larger particles yield to the agent only with a
  struggle; and then they impart their motions to the whole and
  cause pleasure and pain—pain when alienated from their natural
  conditions, and pleasure when restored to them. Things which
  experience gradual withdrawings and emptyings of their nature,
  and great and sudden replenishments, fail to perceive the
  emptying, but are sensible of the replenishment; and so they
  occasion no pain, but the greatest pleasure, to the mortal part
  of the soul, as is manifest in the case of perfumes. But things
  which are changed all of a sudden, and only gradually and with
  difficulty return to their own nature, have effects in every way
  opposite to the former, as is evident in the case of burnings and
  cuttings of the body.

  Thus have we discussed the general affections of the whole body,
  and the names of the agents which produce them. And now I will
  endeavour to speak of the affections of particular parts, and the
  causes and agents of them, as far as I am able. In the first
  place let us set forth what was omitted when we were speaking of
  juices, concerning the affections peculiar to the tongue. These
  too, like most of the other affections, appear to be caused by
  certain contractions and dilations, but they have besides more of
  roughness and smoothness than is found in other affections; for
  whenever earthy particles enter into the small veins which are
  the testing instruments of the tongue, reaching to the heart, and
  fall upon the moist, delicate portions of flesh—when, as they are
  dissolved, they contract and dry up the little veins, they are
  astringent if they are rougher, but if not so rough, then only
  harsh. Those of them which are of an abstergent nature, and purge
  the whole surface of the tongue, if they do it in excess, and so
  encroach as to consume some part of the flesh itself, like potash
  and soda, are all termed bitter. But the particles which are
  deficient in the alkaline quality, and which cleanse only
  moderately, are called salt, and having no bitterness or
  roughness, are regarded as rather agreeable than otherwise.
  Bodies which share in and are made smooth by the heat of the
  mouth, and which are inflamed, and again in turn inflame that
  which heats them, and which are so light that they are carried
  upwards to the sensations of the head, and cut all that comes in
  their way, by reason of these qualities in them, are all termed
  pungent. But when these same particles, refined by putrefaction,
  enter into the narrow veins, and are duly proportioned to the
  particles of earth and air which are there, they set them
  whirling about one another, and while they are in a whirl cause
  them to dash against and enter into one another, and so form
  hollows surrounding the particles that enter—which watery vessels
  of air (for a film of moisture, sometimes earthy, sometimes pure,
  is spread around the air) are hollow spheres of water; and those
  of them which are pure, are transparent, and are called bubbles,
  while those composed of the earthy liquid, which is in a state of
  general agitation and effervescence, are said to boil or
  ferment—of all these affections the cause is termed acid. And
  there is the opposite affection arising from an opposite cause,
  when the mass of entering particles, immersed in the moisture of
  the mouth, is congenial to the tongue, and smooths and oils over
  the roughness, and relaxes the parts which are unnaturally
  contracted, and contracts the parts which are relaxed, and
  disposes them all according to their nature;—that sort of remedy
  of violent affections is pleasant and agreeable to every man, and
  has the name sweet. But enough of this.

  The faculty of smell does not admit of differences of kind; for
  all smells are of a half-formed nature, and no element is so
  proportioned as to have any smell. The veins about the nose are
  too narrow to admit earth and water, and too wide to detain fire
  and air; and for this reason no one ever perceives the smell of
  any of them; but smells always proceed from bodies that are damp,
  or putrefying, or liquefying, or evaporating, and are perceptible
  only in the intermediate state, when water is changing into air
  and air into water; and all of them are either vapour or mist.
  That which is passing out of air into water is mist, and that
  which is passing from water into air is vapour; and hence all
  smells are thinner than water and thicker than air. The proof of
  this is, that when there is any obstruction to the respiration,
  and a man draws in his breath by force, then no smell filters
  through, but the air without the smell alone penetrates.
  Wherefore the varieties of smell have no name, and they have not
  many, or definite and simple kinds; but they are distinguished
  only as painful and pleasant, the one sort irritating and
  disturbing the whole cavity which is situated between the head
  and the navel, the other having a soothing influence, and
  restoring this same region to an agreeable and natural condition.

  In considering the third kind of sense, hearing, we must speak of
  the causes in which it originates. We may in general assume sound
  to be a blow which passes through the ears, and is transmitted by
  means of the air, the brain, and the blood, to the soul, and that
  hearing is the vibration of this blow, which begins in the head
  and ends in the region of the liver. The sound which moves
  swiftly is acute, and the sound which moves slowly is grave, and
  that which is regular is equable and smooth, and the reverse is
  harsh. A great body of sound is loud, and a small body of sound
  the reverse. Respecting the harmonies of sound I must hereafter
  speak.

  There is a fourth class of sensible things, having many intricate
  varieties, which must now be distinguished. They are called by
  the general name of colours, and are a flame which emanates from
  every sort of body, and has particles corresponding to the sense
  of sight. I have spoken already, in what has preceded, of the
  causes which generate sight, and in this place it will be natural
  and suitable to give a rational theory of colours.

  Of the particles coming from other bodies which fall upon the
  sight, some are smaller and some are larger, and some are equal
  to the parts of the sight itself. Those which are equal are
  imperceptible, and we call them transparent. The larger produce
  contraction, the smaller dilation, in the sight, exercising a
  power akin to that of hot and cold bodies on the flesh, or of
  astringent bodies on the tongue, or of those heating bodies which
  we termed pungent. White and black are similar effects of
  contraction and dilation in another sphere, and for this reason
  have a different appearance. Wherefore, we ought to term white
  that which dilates the visual ray, and the opposite of this is
  black. There is also a swifter motion of a different sort of fire
  which strikes and dilates the ray of sight until it reaches the
  eyes, forcing a way through their passages and melting them, and
  eliciting from them a union of fire and water which we call
  tears, being itself an opposite fire which comes to them from an
  opposite direction—the inner fire flashes forth like lightning,
  and the outer finds a way in and is extinguished in the moisture,
  and all sorts of colours are generated by the mixture. This
  affection is termed dazzling, and the object which produces it is
  called bright and flashing. There is another sort of fire which
  is intermediate, and which reaches and mingles with the moisture
  of the eye without flashing; and in this, the fire mingling with
  the ray of the moisture, produces a colour like blood, to which
  we give the name of red. A bright hue mingled with red and white
  gives the colour called auburn (Greek). The law of proportion,
  however, according to which the several colours are formed, even
  if a man knew he would be foolish in telling, for he could not
  give any necessary reason, nor indeed any tolerable or probable
  explanation of them. Again, red, when mingled with black and
  white, becomes purple, but it becomes umber (Greek) when the
  colours are burnt as well as mingled and the black is more
  thoroughly mixed with them. Flame-colour (Greek) is produced by a
  union of auburn and dun (Greek), and dun by an admixture of black
  and white; pale yellow (Greek), by an admixture of white and
  auburn. White and bright meeting, and falling upon a full black,
  become dark blue (Greek), and when dark blue mingles with white,
  a light blue (Greek) colour is formed, as flame-colour with black
  makes leek green (Greek). There will be no difficulty in seeing
  how and by what mixtures the colours derived from these are made
  according to the rules of probability. He, however, who should
  attempt to verify all this by experiment, would forget the
  difference of the human and divine nature. For God only has the
  knowledge and also the power which are able to combine many
  things into one and again resolve the one into many. But no man
  either is or ever will be able to accomplish either the one or
  the other operation.

  These are the elements, thus of necessity then subsisting, which
  the creator of the fairest and best of created things associated
  with himself, when he made the self-sufficing and most perfect
  God, using the necessary causes as his ministers in the
  accomplishment of his work, but himself contriving the good in
  all his creations. Wherefore we may distinguish two sorts of
  causes, the one divine and the other necessary, and may seek for
  the divine in all things, as far as our nature admits, with a
  view to the blessed life; but the necessary kind only for the
  sake of the divine, considering that without them and when
  isolated from them, these higher things for which we look cannot
  be apprehended or received or in any way shared by us.

  Seeing, then, that we have now prepared for our use the various
  classes of causes which are the material out of which the
  remainder of our discourse must be woven, just as wood is the
  material of the carpenter, let us revert in a few words to the
  point at which we began, and then endeavour to add on a suitable
  ending to the beginning of our tale.

  As I said at first, when all things were in disorder God created
  in each thing in relation to itself, and in all things in
  relation to each other, all the measures and harmonies which they
  could possibly receive. For in those days nothing had any
  proportion except by accident; nor did any of the things which
  now have names deserve to be named at all—as, for example, fire,
  water, and the rest of the elements. All these the creator first
  set in order, and out of them he constructed the universe, which
  was a single animal comprehending in itself all other animals,
  mortal and immortal. Now of the divine, he himself was the
  creator, but the creation of the mortal he committed to his
  offspring. And they, imitating him, received from him the
  immortal principle of the soul; and around this they proceeded to
  fashion a mortal body, and made it to be the vehicle of the soul,
  and constructed within the body a soul of another nature which
  was mortal, subject to terrible and irresistible
  affections,—first of all, pleasure, the greatest incitement to
  evil; then, pain, which deters from good; also rashness and fear,
  two foolish counsellors, anger hard to be appeased, and hope
  easily led astray;—these they mingled with irrational sense and
  with all-daring love according to necessary laws, and so framed
  man. Wherefore, fearing to pollute the divine any more than was
  absolutely unavoidable, they gave to the mortal nature a separate
  habitation in another part of the body, placing the neck between
  them to be the isthmus and boundary, which they constructed
  between the head and breast, to keep them apart. And in the
  breast, and in what is termed the thorax, they encased the mortal
  soul; and as the one part of this was superior and the other
  inferior they divided the cavity of the thorax into two parts, as
  the women’s and men’s apartments are divided in houses, and
  placed the midriff to be a wall of partition between them. That
  part of the inferior soul which is endowed with courage and
  passion and loves contention they settled nearer the head, midway
  between the midriff and the neck, in order that it might be under
  the rule of reason and might join with it in controlling and
  restraining the desires when they are no longer willing of their
  own accord to obey the word of command issuing from the citadel.

  The heart, the knot of the veins and the fountain of the blood
  which races through all the limbs, was set in the place of guard,
  that when the might of passion was roused by reason making
  proclamation of any wrong assailing them from without or being
  perpetrated by the desires within, quickly the whole power of
  feeling in the body, perceiving these commands and threats, might
  obey and follow through every turn and alley, and thus allow the
  principle of the best to have the command in all of them. But the
  gods, foreknowing that the palpitation of the heart in the
  expectation of danger and the swelling and excitement of passion
  was caused by fire, formed and implanted as a supporter to the
  heart the lung, which was, in the first place, soft and
  bloodless, and also had within hollows like the pores of a
  sponge, in order that by receiving the breath and the drink, it
  might give coolness and the power of respiration and alleviate
  the heat. Wherefore they cut the air-channels leading to the
  lung, and placed the lung about the heart as a soft spring, that,
  when passion was rife within, the heart, beating against a
  yielding body, might be cooled and suffer less, and might thus
  become more ready to join with passion in the service of reason.

  The part of the soul which desires meats and drinks and the other
  things of which it has need by reason of the bodily nature, they
  placed between the midriff and the boundary of the navel,
  contriving in all this region a sort of manger for the food of
  the body; and there they bound it down like a wild animal which
  was chained up with man, and must be nourished if man was to
  exist. They appointed this lower creation his place here in order
  that he might be always feeding at the manger, and have his
  dwelling as far as might be from the council-chamber, making as
  little noise and disturbance as possible, and permitting the best
  part to advise quietly for the good of the whole. And knowing
  that this lower principle in man would not comprehend reason, and
  even if attaining to some degree of perception would never
  naturally care for rational notions, but that it would be led
  away by phantoms and visions night and day,—to be a remedy for
  this, God combined with it the liver, and placed it in the house
  of the lower nature, contriving that it should be solid and
  smooth, and bright and sweet, and should also have a bitter
  quality, in order that the power of thought, which proceeds from
  the mind, might be reflected as in a mirror which receives
  likenesses of objects and gives back images of them to the sight;
  and so might strike terror into the desires, when, making use of
  the bitter part of the liver, to which it is akin, it comes
  threatening and invading, and diffusing this bitter element
  swiftly through the whole liver produces colours like bile, and
  contracting every part makes it wrinkled and rough; and twisting
  out of its right place and contorting the lobe and closing and
  shutting up the vessels and gates, causes pain and loathing. And
  the converse happens when some gentle inspiration of the
  understanding pictures images of an opposite character, and
  allays the bile and bitterness by refusing to stir or touch the
  nature opposed to itself, but by making use of the natural
  sweetness of the liver, corrects all things and makes them to be
  right and smooth and free, and renders the portion of the soul
  which resides about the liver happy and joyful, enabling it to
  pass the night in peace, and to practise divination in sleep,
  inasmuch as it has no share in mind and reason. For the authors
  of our being, remembering the command of their father when he
  bade them create the human race as good as they could, that they
  might correct our inferior parts and make them to attain a
  measure of truth, placed in the liver the seat of divination. And
  herein is a proof that God has given the art of divination not to
  the wisdom, but to the foolishness of man. No man, when in his
  wits, attains prophetic truth and inspiration; but when he
  receives the inspired word, either his intelligence is enthralled
  in sleep, or he is demented by some distemper or possession. And
  he who would understand what he remembers to have been said,
  whether in a dream or when he was awake, by the prophetic and
  inspired nature, or would determine by reason the meaning of the
  apparitions which he has seen, and what indications they afford
  to this man or that, of past, present or future good and evil,
  must first recover his wits. But, while he continues demented, he
  cannot judge of the visions which he sees or the words which he
  utters; the ancient saying is very true, that ‘only a man who has
  his wits can act or judge about himself and his own affairs.’ And
  for this reason it is customary to appoint interpreters to be
  judges of the true inspiration. Some persons call them prophets;
  they are quite unaware that they are only the expositors of dark
  sayings and visions, and are not to be called prophets at all,
  but only interpreters of prophecy.

  Such is the nature of the liver, which is placed as we have
  described in order that it may give prophetic intimations. During
  the life of each individual these intimations are plainer, but
  after his death the liver becomes blind, and delivers oracles too
  obscure to be intelligible. The neighbouring organ (the spleen)
  is situated on the left-hand side, and is constructed with a view
  of keeping the liver bright and pure,—like a napkin, always ready
  prepared and at hand to clean the mirror. And hence, when any
  impurities arise in the region of the liver by reason of
  disorders of the body, the loose nature of the spleen, which is
  composed of a hollow and bloodless tissue, receives them all and
  clears them away, and when filled with the unclean matter, swells
  and festers, but, again, when the body is purged, settles down
  into the same place as before, and is humbled.

  Concerning the soul, as to which part is mortal and which divine,
  and how and why they are separated, and where located, if God
  acknowledges that we have spoken the truth, then, and then only,
  can we be confident; still, we may venture to assert that what
  has been said by us is probable, and will be rendered more
  probable by investigation. Let us assume thus much.

  The creation of the rest of the body follows next in order, and
  this we may investigate in a similar manner. And it appears to be
  very meet that the body should be framed on the following
  principles:—

  The authors of our race were aware that we should be intemperate
  in eating and drinking, and take a good deal more than was
  necessary or proper, by reason of gluttony. In order then that
  disease might not quickly destroy us, and lest our mortal race
  should perish without fulfilling its end—intending to provide
  against this, the gods made what is called the lower belly, to be
  a receptacle for the superfluous meat and drink, and formed the
  convolution of the bowels, so that the food might be prevented
  from passing quickly through and compelling the body to require
  more food, thus producing insatiable gluttony, and making the
  whole race an enemy to philosophy and music, and rebellious
  against the divinest element within us.

  The bones and flesh, and other similar parts of us, were made as
  follows. The first principle of all of them was the generation of
  the marrow. For the bonds of life which unite the soul with the
  body are made fast there, and they are the root and foundation of
  the human race. The marrow itself is created out of other
  materials: God took such of the primary triangles as were
  straight and smooth, and were adapted by their perfection to
  produce fire and water, and air and earth—these, I say, he
  separated from their kinds, and mingling them in due proportions
  with one another, made the marrow out of them to be a universal
  seed of the whole race of mankind; and in this seed he then
  planted and enclosed the souls, and in the original distribution
  gave to the marrow as many and various forms as the different
  kinds of souls were hereafter to receive. That which, like a
  field, was to receive the divine seed, he made round every way,
  and called that portion of the marrow, brain, intending that,
  when an animal was perfected, the vessel containing this
  substance should be the head; but that which was intended to
  contain the remaining and mortal part of the soul he distributed
  into figures at once round and elongated, and he called them all
  by the name ‘marrow’; and to these, as to anchors, fastening the
  bonds of the whole soul, he proceeded to fashion around them the
  entire framework of our body, constructing for the marrow, first
  of all a complete covering of bone.

  Bone was composed by him in the following manner. Having sifted
  pure and smooth earth he kneaded it and wetted it with marrow,
  and after that he put it into fire and then into water, and once
  more into fire and again into water—in this way by frequent
  transfers from one to the other he made it insoluble by either.
  Out of this he fashioned, as in a lathe, a globe made of bone,
  which he placed around the brain, and in this he left a narrow
  opening; and around the marrow of the neck and back he formed
  vertebrae which he placed under one another like pivots,
  beginning at the head and extending through the whole of the
  trunk. Thus wishing to preserve the entire seed, he enclosed it
  in a stone-like casing, inserting joints, and using in the
  formation of them the power of the other or diverse as an
  intermediate nature, that they might have motion and flexure.
  Then again, considering that the bone would be too brittle and
  inflexible, and when heated and again cooled would soon mortify
  and destroy the seed within—having this in view, he contrived the
  sinews and the flesh, that so binding all the members together by
  the sinews, which admitted of being stretched and relaxed about
  the vertebrae, he might thus make the body capable of flexion and
  extension, while the flesh would serve as a protection against
  the summer heat and against the winter cold, and also against
  falls, softly and easily yielding to external bodies, like
  articles made of felt; and containing in itself a warm moisture
  which in summer exudes and makes the surface damp, would impart a
  natural coolness to the whole body; and again in winter by the
  help of this internal warmth would form a very tolerable defence
  against the frost which surrounds it and attacks it from without.
  He who modelled us, considering these things, mixed earth with
  fire and water and blended them; and making a ferment of acid and
  salt, he mingled it with them and formed soft and succulent
  flesh. As for the sinews, he made them of a mixture of bone and
  unfermented flesh, attempered so as to be in a mean, and gave
  them a yellow colour; wherefore the sinews have a firmer and more
  glutinous nature than flesh, but a softer and moister nature than
  the bones. With these God covered the bones and marrow, binding
  them together by sinews, and then enshrouded them all in an upper
  covering of flesh. The more living and sensitive of the bones he
  enclosed in the thinnest film of flesh, and those which had the
  least life within them in the thickest and most solid flesh. So
  again on the joints of the bones, where reason indicated that no
  more was required, he placed only a thin covering of flesh, that
  it might not interfere with the flexion of our bodies and make
  them unwieldy because difficult to move; and also that it might
  not, by being crowded and pressed and matted together, destroy
  sensation by reason of its hardness, and impair the memory and
  dull the edge of intelligence. Wherefore also the thighs and the
  shanks and the hips, and the bones of the arms and the forearms,
  and other parts which have no joints, and the inner bones, which
  on account of the rarity of the soul in the marrow are destitute
  of reason—all these are abundantly provided with flesh; but such
  as have mind in them are in general less fleshy, except where the
  creator has made some part solely of flesh in order to give
  sensation,—as, for example, the tongue. But commonly this is not
  the case. For the nature which comes into being and grows up in
  us by a law of necessity, does not admit of the combination of
  solid bone and much flesh with acute perceptions. More than any
  other part the framework of the head would have had them, if they
  could have co-existed, and the human race, having a strong and
  fleshy and sinewy head, would have had a life twice or many times
  as long as it now has, and also more healthy and free from pain.
  But our creators, considering whether they should make a
  longer-lived race which was worse, or a shorter-lived race which
  was better, came to the conclusion that every one ought to prefer
  a shorter span of life, which was better, to a longer one, which
  was worse; and therefore they covered the head with thin bone,
  but not with flesh and sinews, since it had no joints; and thus
  the head was added, having more wisdom and sensation than the
  rest of the body, but also being in every man far weaker. For
  these reasons and after this manner God placed the sinews at the
  extremity of the head, in a circle round the neck, and glued them
  together by the principle of likeness and fastened the
  extremities of the jawbones to them below the face, and the other
  sinews he dispersed throughout the body, fastening limb to limb.
  The framers of us framed the mouth, as now arranged, having teeth
  and tongue and lips, with a view to the necessary and the good
  contriving the way in for necessary purposes, the way out for the
  best purposes; for that is necessary which enters in and gives
  food to the body; but the river of speech, which flows out of a
  man and ministers to the intelligence, is the fairest and noblest
  of all streams. Still the head could neither be left a bare frame
  of bones, on account of the extremes of heat and cold in the
  different seasons, nor yet be allowed to be wholly covered, and
  so become dull and senseless by reason of an overgrowth of flesh.
  The fleshy nature was not therefore wholly dried up, but a large
  sort of peel was parted off and remained over, which is now
  called the skin. This met and grew by the help of the cerebral
  moisture, and became the circular envelopment of the head. And
  the moisture, rising up under the sutures, watered and closed in
  the skin upon the crown, forming a sort of knot. The diversity of
  the sutures was caused by the power of the courses of the soul
  and of the food, and the more these struggled against one another
  the more numerous they became, and fewer if the struggle were
  less violent. This skin the divine power pierced all round with
  fire, and out of the punctures which were thus made the moisture
  issued forth, and the liquid and heat which was pure came away,
  and a mixed part which was composed of the same material as the
  skin, and had a fineness equal to the punctures, was borne up by
  its own impulse and extended far outside the head, but being too
  slow to escape, was thrust back by the external air, and rolled
  up underneath the skin, where it took root. Thus the hair sprang
  up in the skin, being akin to it because it is like threads of
  leather, but rendered harder and closer through the pressure of
  the cold, by which each hair, while in process of separation from
  the skin, is compressed and cooled. Wherefore the creator formed
  the head hairy, making use of the causes which I have mentioned,
  and reflecting also that instead of flesh the brain needed the
  hair to be a light covering or guard, which would give shade in
  summer and shelter in winter, and at the same time would not
  impede our quickness of perception. From the combination of
  sinew, skin, and bone, in the structure of the finger, there
  arises a triple compound, which, when dried up, takes the form of
  one hard skin partaking of all three natures, and was fabricated
  by these second causes, but designed by mind which is the
  principal cause with an eye to the future. For our creators well
  knew that women and other animals would some day be framed out of
  men, and they further knew that many animals would require the
  use of nails for many purposes; wherefore they fashioned in men
  at their first creation the rudiments of nails. For this purpose
  and for these reasons they caused skin, hair, and nails to grow
  at the extremities of the limbs.

  And now that all the parts and members of the mortal animal had
  come together, since its life of necessity consisted of fire and
  breath, and it therefore wasted away by dissolution and
  depletion, the gods contrived the following remedy: They mingled
  a nature akin to that of man with other forms and perceptions,
  and thus created another kind of animal. These are the trees and
  plants and seeds which have been improved by cultivation and are
  now domesticated among us; anciently there were only the wild
  kinds, which are older than the cultivated. For everything that
  partakes of life may be truly called a living being, and the
  animal of which we are now speaking partakes of the third kind of
  soul, which is said to be seated between the midriff and the
  navel, having no part in opinion or reason or mind, but only in
  feelings of pleasure and pain and the desires which accompany
  them. For this nature is always in a passive state, revolving in
  and about itself, repelling the motion from without and using its
  own, and accordingly is not endowed by nature with the power of
  observing or reflecting on its own concerns. Wherefore it lives
  and does not differ from a living being, but is fixed and rooted
  in the same spot, having no power of self-motion.

  Now after the superior powers had created all these natures to be
  food for us who are of the inferior nature, they cut various
  channels through the body as through a garden, that it might be
  watered as from a running stream. In the first place, they cut
  two hidden channels or veins down the back where the skin and the
  flesh join, which answered severally to the right and left side
  of the body. These they let down along the backbone, so as to
  have the marrow of generation between them, where it was most
  likely to flourish, and in order that the stream coming down from
  above might flow freely to the other parts, and equalize the
  irrigation. In the next place, they divided the veins about the
  head, and interlacing them, they sent them in opposite
  directions; those coming from the right side they sent to the
  left of the body, and those from the left they diverted towards
  the right, so that they and the skin might together form a bond
  which should fasten the head to the body, since the crown of the
  head was not encircled by sinews; and also in order that the
  sensations from both sides might be distributed over the whole
  body. And next, they ordered the water-courses of the body in a
  manner which I will describe, and which will be more easily
  understood if we begin by admitting that all things which have
  lesser parts retain the greater, but the greater cannot retain
  the lesser. Now of all natures fire has the smallest parts, and
  therefore penetrates through earth and water and air and their
  compounds, nor can anything hold it. And a similar principle
  applies to the human belly; for when meats and drinks enter it,
  it holds them, but it cannot hold air and fire, because the
  particles of which they consist are smaller than its own
  structure.

  These elements, therefore, God employed for the sake of
  distributing moisture from the belly into the veins, weaving
  together a network of fire and air like a weel, having at the
  entrance two lesser weels; further he constructed one of these
  with two openings, and from the lesser weels he extended cords
  reaching all round to the extremities of the network. All the
  interior of the net he made of fire, but the lesser weels and
  their cavity, of air. The network he took and spread over the
  newly-formed animal in the following manner:—He let the lesser
  weels pass into the mouth; there were two of them, and one he let
  down by the air-pipes into the lungs, the other by the side of
  the air-pipes into the belly. The former he divided into two
  branches, both of which he made to meet at the channels of the
  nose, so that when the way through the mouth did not act, the
  streams of the mouth as well were replenished through the nose.
  With the other cavity (i.e. of the greater weel) he enveloped the
  hollow parts of the body, and at one time he made all this to
  flow into the lesser weels, quite gently, for they are composed
  of air, and at another time he caused the lesser weels to flow
  back again; and the net he made to find a way in and out through
  the pores of the body, and the rays of fire which are bound fast
  within followed the passage of the air either way, never at any
  time ceasing so long as the mortal being holds together. This
  process, as we affirm, the name-giver named inspiration and
  expiration. And all this movement, active as well as passive,
  takes place in order that the body, being watered and cooled, may
  receive nourishment and life; for when the respiration is going
  in and out, and the fire, which is fast bound within, follows it,
  and ever and anon moving to and fro, enters through the belly and
  reaches the meat and drink, it dissolves them, and dividing them
  into small portions and guiding them through the passages where
  it goes, pumps them as from a fountain into the channels of the
  veins, and makes the stream of the veins flow through the body as
  through a conduit.

  Let us once more consider the phenomena of respiration, and
  enquire into the causes which have made it what it is. They are
  as follows:—Seeing that there is no such thing as a vacuum into
  which any of those things which are moved can enter, and the
  breath is carried from us into the external air, the next point
  is, as will be clear to every one, that it does not go into a
  vacant space, but pushes its neighbour out of its place, and that
  which is thrust out in turn drives out its neighbour; and in this
  way everything of necessity at last comes round to that place
  from whence the breath came forth, and enters in there, and
  following the breath, fills up the vacant space; and this goes on
  like the rotation of a wheel, because there can be no such thing
  as a vacuum. Wherefore also the breast and the lungs, when they
  emit the breath, are replenished by the air which surrounds the
  body and which enters in through the pores of the flesh and is
  driven round in a circle; and again, the air which is sent away
  and passes out through the body forces the breath inwards through
  the passage of the mouth and the nostrils. Now the origin of this
  movement may be supposed to be as follows. In the interior of
  every animal the hottest part is that which is around the blood
  and veins; it is in a manner an internal fountain of fire, which
  we compare to the network of a creel, being woven all of fire and
  extended through the centre of the body, while the outer parts
  are composed of air. Now we must admit that heat naturally
  proceeds outward to its own place and to its kindred element; and
  as there are two exits for the heat, the one out through the
  body, and the other through the mouth and nostrils, when it moves
  towards the one, it drives round the air at the other, and that
  which is driven round falls into the fire and becomes warm, and
  that which goes forth is cooled. But when the heat changes its
  place, and the particles at the other exit grow warmer, the
  hotter air inclining in that direction and carried towards its
  native element, fire, pushes round the air at the other; and this
  being affected in the same way and communicating the same
  impulse, a circular motion swaying to and fro is produced by the
  double process, which we call inspiration and expiration.

  The phenomena of medical cupping-glasses and of the swallowing of
  drink and of the projection of bodies, whether discharged in the
  air or bowled along the ground, are to be investigated on a
  similar principle; and swift and slow sounds, which appear to be
  high and low, and are sometimes discordant on account of their
  inequality, and then again harmonical on account of the equality
  of the motion which they excite in us. For when the motions of
  the antecedent swifter sounds begin to pause and the two are
  equalized, the slower sounds overtake the swifter and then propel
  them. When they overtake them they do not intrude a new and
  discordant motion, but introduce the beginnings of a slower,
  which answers to the swifter as it dies away, thus producing a
  single mixed expression out of high and low, whence arises a
  pleasure which even the unwise feel, and which to the wise
  becomes a higher sort of delight, being an imitation of divine
  harmony in mortal motions. Moreover, as to the flowing of water,
  the fall of the thunderbolt, and the marvels that are observed
  about the attraction of amber and the Heraclean stones,—in none
  of these cases is there any attraction; but he who investigates
  rightly, will find that such wonderful phenomena are attributable
  to the combination of certain conditions—the non-existence of a
  vacuum, the fact that objects push one another round, and that
  they change places, passing severally into their proper positions
  as they are divided or combined.

  Such as we have seen, is the nature and such are the causes of
  respiration,—the subject in which this discussion originated. For
  the fire cuts the food and following the breath surges up within,
  fire and breath rising together and filling the veins by drawing
  up out of the belly and pouring into them the cut portions of the
  food; and so the streams of food are kept flowing through the
  whole body in all animals. And fresh cuttings from kindred
  substances, whether the fruits of the earth or herb of the field,
  which God planted to be our daily food, acquire all sorts of
  colours by their inter-mixture; but red is the most pervading of
  them, being created by the cutting action of fire and by the
  impression which it makes on a moist substance; and hence the
  liquid which circulates in the body has a colour such as we have
  described. The liquid itself we call blood, which nourishes the
  flesh and the whole body, whence all parts are watered and empty
  places filled.

  Now the process of repletion and evacuation is effected after the
  manner of the universal motion by which all kindred substances
  are drawn towards one another. For the external elements which
  surround us are always causing us to consume away, and
  distributing and sending off like to like; the particles of
  blood, too, which are divided and contained within the frame of
  the animal as in a sort of heaven, are compelled to imitate the
  motion of the universe. Each, therefore, of the divided parts
  within us, being carried to its kindred nature, replenishes the
  void. When more is taken away than flows in, then we decay, and
  when less, we grow and increase.

  The frame of the entire creature when young has the triangles of
  each kind new, and may be compared to the keel of a vessel which
  is just off the stocks; they are locked firmly together and yet
  the whole mass is soft and delicate, being freshly formed of
  marrow and nurtured on milk. Now when the triangles out of which
  meats and drinks are composed come in from without, and are
  comprehended in the body, being older and weaker than the
  triangles already there, the frame of the body gets the better of
  them and its newer triangles cut them up, and so the animal grows
  great, being nourished by a multitude of similar particles. But
  when the roots of the triangles are loosened by having undergone
  many conflicts with many things in the course of time, they are
  no longer able to cut or assimilate the food which enters, but
  are themselves easily divided by the bodies which come in from
  without. In this way every animal is overcome and decays, and
  this affection is called old age. And at last, when the bonds by
  which the triangles of the marrow are united no longer hold, and
  are parted by the strain of existence, they in turn loosen the
  bonds of the soul, and she, obtaining a natural release, flies
  away with joy. For that which takes place according to nature is
  pleasant, but that which is contrary to nature is painful. And
  thus death, if caused by disease or produced by wounds, is
  painful and violent; but that sort of death which comes with old
  age and fulfils the debt of nature is the easiest of deaths, and
  is accompanied with pleasure rather than with pain.

  Now every one can see whence diseases arise. There are four
  natures out of which the body is compacted, earth and fire and
  water and air, and the unnatural excess or defect of these, or
  the change of any of them from its own natural place into
  another, or—since there are more kinds than one of fire and of
  the other elements—the assumption by any of these of a wrong
  kind, or any similar irregularity, produces disorders and
  diseases; for when any of them is produced or changed in a manner
  contrary to nature, the parts which were previously cool grow
  warm, and those which were dry become moist, and the light become
  heavy, and the heavy light; all sorts of changes occur. For, as
  we affirm, a thing can only remain the same with itself, whole
  and sound, when the same is added to it, or subtracted from it,
  in the same respect and in the same manner and in due proportion;
  and whatever comes or goes away in violation of these laws causes
  all manner of changes and infinite diseases and corruptions. Now
  there is a second class of structures which are also natural, and
  this affords a second opportunity of observing diseases to him
  who would understand them. For whereas marrow and bone and flesh
  and sinews are composed of the four elements, and the blood,
  though after another manner, is likewise formed out of them, most
  diseases originate in the way which I have described; but the
  worst of all owe their severity to the fact that the generation
  of these substances proceeds in a wrong order; they are then
  destroyed. For the natural order is that the flesh and sinews
  should be made of blood, the sinews out of the fibres to which
  they are akin, and the flesh out of the clots which are formed
  when the fibres are separated. And the glutinous and rich matter
  which comes away from the sinews and the flesh, not only glues
  the flesh to the bones, but nourishes and imparts growth to the
  bone which surrounds the marrow; and by reason of the solidity of
  the bones, that which filters through consists of the purest and
  smoothest and oiliest sort of triangles, dropping like dew from
  the bones and watering the marrow. Now when each process takes
  place in this order, health commonly results; when in the
  opposite order, disease. For when the flesh becomes decomposed
  and sends back the wasting substance into the veins, then an
  over-supply of blood of diverse kinds, mingling with air in the
  veins, having variegated colours and bitter properties, as well
  as acid and saline qualities, contains all sorts of bile and
  serum and phlegm. For all things go the wrong way, and having
  become corrupted, first they taint the blood itself, and then
  ceasing to give nourishment to the body they are carried along
  the veins in all directions, no longer preserving the order of
  their natural courses, but at war with themselves, because they
  receive no good from one another, and are hostile to the abiding
  constitution of the body, which they corrupt and dissolve. The
  oldest part of the flesh which is corrupted, being hard to
  decompose, from long burning grows black, and from being
  everywhere corroded becomes bitter, and is injurious to every
  part of the body which is still uncorrupted. Sometimes, when the
  bitter element is refined away, the black part assumes an acidity
  which takes the place of the bitterness; at other times the
  bitterness being tinged with blood has a redder colour; and this,
  when mixed with black, takes the hue of grass; and again, an
  auburn colour mingles with the bitter matter when new flesh is
  decomposed by the fire which surrounds the internal flame;—to all
  which symptoms some physician perhaps, or rather some
  philosopher, who had the power of seeing in many dissimilar
  things one nature deserving of a name, has assigned the common
  name of bile. But the other kinds of bile are variously
  distinguished by their colours. As for serum, that sort which is
  the watery part of blood is innocent, but that which is a
  secretion of black and acid bile is malignant when mingled by the
  power of heat with any salt substance, and is then called acid
  phlegm. Again, the substance which is formed by the liquefaction
  of new and tender flesh when air is present, if inflated and
  encased in liquid so as to form bubbles, which separately are
  invisible owing to their small size, but when collected are of a
  bulk which is visible, and have a white colour arising out of the
  generation of foam—all this decomposition of tender flesh when
  intermingled with air is termed by us white phlegm. And the whey
  or sediment of newly-formed phlegm is sweat and tears, and
  includes the various daily discharges by which the body is
  purified. Now all these become causes of disease when the blood
  is not replenished in a natural manner by food and drink but
  gains bulk from opposite sources in violation of the laws of
  nature. When the several parts of the flesh are separated by
  disease, if the foundation remains, the power of the disorder is
  only half as great, and there is still a prospect of an easy
  recovery; but when that which binds the flesh to the bones is
  diseased, and no longer being separated from the muscles and
  sinews, ceases to give nourishment to the bone and to unite flesh
  and bone, and from being oily and smooth and glutinous becomes
  rough and salt and dry, owing to bad regimen, then all the
  substance thus corrupted crumbles away under the flesh and the
  sinews, and separates from the bone, and the fleshy parts fall
  away from their foundation and leave the sinews bare and full of
  brine, and the flesh again gets into the circulation of the blood
  and makes the previously-mentioned disorders still greater. And
  if these bodily affections be severe, still worse are the prior
  disorders; as when the bone itself, by reason of the density of
  the flesh, does not obtain sufficient air, but becomes mouldy and
  hot and gangrened and receives no nutriment, and the natural
  process is inverted, and the bone crumbling passes into the food,
  and the food into the flesh, and the flesh again falling into the
  blood makes all maladies that may occur more virulent than those
  already mentioned. But the worst case of all is when the marrow
  is diseased, either from excess or defect; and this is the cause
  of the very greatest and most fatal disorders, in which the whole
  course of the body is reversed.

  There is a third class of diseases which may be conceived of as
  arising in three ways; for they are produced sometimes by wind,
  and sometimes by phlegm, and sometimes by bile. When the lung,
  which is the dispenser of the air to the body, is obstructed by
  rheums and its passages are not free, some of them not acting,
  while through others too much air enters, then the parts which
  are unrefreshed by air corrode, while in other parts the excess
  of air forcing its way through the veins distorts them and
  decomposing the body is enclosed in the midst of it and occupies
  the midriff; thus numberless painful diseases are produced,
  accompanied by copious sweats. And oftentimes when the flesh is
  dissolved in the body, wind, generated within and unable to
  escape, is the source of quite as much pain as the air coming in
  from without; but the greatest pain is felt when the wind gets
  about the sinews and the veins of the shoulders, and swells them
  up, and so twists back the great tendons and the sinews which are
  connected with them. These disorders are called tetanus and
  opisthotonus, by reason of the tension which accompanies them.
  The cure of them is difficult; relief is in most cases given by
  fever supervening. The white phlegm, though dangerous when
  detained within by reason of the air-bubbles, yet if it can
  communicate with the outside air, is less severe, and only
  discolours the body, generating leprous eruptions and similar
  diseases. When it is mingled with black bile and dispersed about
  the courses of the head, which are the divinest part of us, the
  attack if coming on in sleep, is not so severe; but when
  assailing those who are awake it is hard to be got rid of, and
  being an affection of a sacred part, is most justly called
  sacred. An acid and salt phlegm, again, is the source of all
  those diseases which take the form of catarrh, but they have many
  names because the places into which they flow are manifold.

  Inflammations of the body come from burnings and inflamings, and
  all of them originate in bile. When bile finds a means of
  discharge, it boils up and sends forth all sorts of tumours; but
  when imprisoned within, it generates many inflammatory diseases,
  above all when mingled with pure blood; since it then displaces
  the fibres which are scattered about in the blood and are
  designed to maintain the balance of rare and dense, in order that
  the blood may not be so liquefied by heat as to exude from the
  pores of the body, nor again become too dense and thus find a
  difficulty in circulating through the veins. The fibres are so
  constituted as to maintain this balance; and if any one brings
  them all together when the blood is dead and in process of
  cooling, then the blood which remains becomes fluid, but if they
  are left alone, they soon congeal by reason of the surrounding
  cold. The fibres having this power over the blood, bile, which is
  only stale blood, and which from being flesh is dissolved again
  into blood, at the first influx coming in little by little, hot
  and liquid, is congealed by the power of the fibres; and so
  congealing and made to cool, it produces internal cold and
  shuddering. When it enters with more of a flood and overcomes the
  fibres by its heat, and boiling up throws them into disorder, if
  it have power enough to maintain its supremacy, it penetrates the
  marrow and burns up what may be termed the cables of the soul,
  and sets her free; but when there is not so much of it, and the
  body though wasted still holds out, the bile is itself mastered,
  and is either utterly banished, or is thrust through the veins
  into the lower or upper belly, and is driven out of the body like
  an exile from a state in which there has been civil war; whence
  arise diarrhoeas and dysenteries, and all such disorders. When
  the constitution is disordered by excess of fire, continuous heat
  and fever are the result; when excess of air is the cause, then
  the fever is quotidian; when of water, which is a more sluggish
  element than either fire or air, then the fever is a tertian;
  when of earth, which is the most sluggish of the four, and is
  only purged away in a four-fold period, the result is a quartan
  fever, which can with difficulty be shaken off.

  Such is the manner in which diseases of the body arise; the
  disorders of the soul, which depend upon the body, originate as
  follows. We must acknowledge disease of the mind to be a want of
  intelligence; and of this there are two kinds; to wit, madness
  and ignorance. In whatever state a man experiences either of
  them, that state may be called disease; and excessive pains and
  pleasures are justly to be regarded as the greatest diseases to
  which the soul is liable. For a man who is in great joy or in
  great pain, in his unreasonable eagerness to attain the one and
  to avoid the other, is not able to see or to hear anything
  rightly; but he is mad, and is at the time utterly incapable of
  any participation in reason. He who has the seed about the spinal
  marrow too plentiful and overflowing, like a tree overladen with
  fruit, has many throes, and also obtains many pleasures in his
  desires and their offspring, and is for the most part of his life
  deranged, because his pleasures and pains are so very great; his
  soul is rendered foolish and disordered by his body; yet he is
  regarded not as one diseased, but as one who is voluntarily bad,
  which is a mistake. The truth is that the intemperance of love is
  a disease of the soul due chiefly to the moisture and fluidity
  which is produced in one of the elements by the loose consistency
  of the bones. And in general, all that which is termed the
  incontinence of pleasure and is deemed a reproach under the idea
  that the wicked voluntarily do wrong is not justly a matter for
  reproach. For no man is voluntarily bad; but the bad become bad
  by reason of an ill disposition of the body and bad education,
  things which are hateful to every man and happen to him against
  his will. And in the case of pain too in like manner the soul
  suffers much evil from the body. For where the acid and briny
  phlegm and other bitter and bilious humours wander about in the
  body, and find no exit or escape, but are pent up within and
  mingle their own vapours with the motions of the soul, and are
  blended with them, they produce all sorts of diseases, more or
  fewer, and in every degree of intensity; and being carried to the
  three places of the soul, whichever they may severally assail,
  they create infinite varieties of ill-temper and melancholy, of
  rashness and cowardice, and also of forgetfulness and stupidity.
  Further, when to this evil constitution of body evil forms of
  government are added and evil discourses are uttered in private
  as well as in public, and no sort of instruction is given in
  youth to cure these evils, then all of us who are bad become bad
  from two causes which are entirely beyond our control. In such
  cases the planters are to blame rather than the plants, the
  educators rather than the educated. But however that may be, we
  should endeavour as far as we can by education, and studies, and
  learning, to avoid vice and attain virtue; this, however, is part
  of another subject.

  There is a corresponding enquiry concerning the mode of treatment
  by which the mind and the body are to be preserved, about which
  it is meet and right that I should say a word in turn; for it is
  more our duty to speak of the good than of the evil. Everything
  that is good is fair, and the fair is not without proportion, and
  the animal which is to be fair must have due proportion. Now we
  perceive lesser symmetries or proportions and reason about them,
  but of the highest and greatest we take no heed; for there is no
  proportion or disproportion more productive of health and
  disease, and virtue and vice, than that between soul and body.
  This however we do not perceive, nor do we reflect that when a
  weak or small frame is the vehicle of a great and mighty soul, or
  conversely, when a little soul is encased in a large body, then
  the whole animal is not fair, for it lacks the most important of
  all symmetries; but the due proportion of mind and body is the
  fairest and loveliest of all sights to him who has the seeing
  eye. Just as a body which has a leg too long, or which is
  unsymmetrical in some other respect, is an unpleasant sight, and
  also, when doing its share of work, is much distressed and makes
  convulsive efforts, and often stumbles through awkwardness, and
  is the cause of infinite evil to its own self—in like manner we
  should conceive of the double nature which we call the living
  being; and when in this compound there is an impassioned soul
  more powerful than the body, that soul, I say, convulses and
  fills with disorders the whole inner nature of man; and when
  eager in the pursuit of some sort of learning or study, causes
  wasting; or again, when teaching or disputing in private or in
  public, and strifes and controversies arise, inflames and
  dissolves the composite frame of man and introduces rheums; and
  the nature of this phenomenon is not understood by most
  professors of medicine, who ascribe it to the opposite of the
  real cause. And once more, when a body large and too strong for
  the soul is united to a small and weak intelligence, then
  inasmuch as there are two desires natural to man,—one of food for
  the sake of the body, and one of wisdom for the sake of the
  diviner part of us—then, I say, the motions of the stronger,
  getting the better and increasing their own power, but making the
  soul dull, and stupid, and forgetful, engender ignorance, which
  is the greatest of diseases. There is one protection against both
  kinds of disproportion:—that we should not move the body without
  the soul or the soul without the body, and thus they will be on
  their guard against each other, and be healthy and well balanced.
  And therefore the mathematician or any one else whose thoughts
  are much absorbed in some intellectual pursuit, must allow his
  body also to have due exercise, and practise gymnastic; and he
  who is careful to fashion the body, should in turn impart to the
  soul its proper motions, and should cultivate music and all
  philosophy, if he would deserve to be called truly fair and truly
  good. And the separate parts should be treated in the same
  manner, in imitation of the pattern of the universe; for as the
  body is heated and also cooled within by the elements which enter
  into it, and is again dried up and moistened by external things,
  and experiences these and the like affections from both kinds of
  motions, the result is that the body if given up to motion when
  in a state of quiescence is overmastered and perishes; but if any
  one, in imitation of that which we call the foster-mother and
  nurse of the universe, will not allow the body ever to be
  inactive, but is always producing motions and agitations through
  its whole extent, which form the natural defence against other
  motions both internal and external, and by moderate exercise
  reduces to order according to their affinities the particles and
  affections which are wandering about the body, as we have already
  said when speaking of the universe, he will not allow enemy
  placed by the side of enemy to stir up wars and disorders in the
  body, but he will place friend by the side of friend, so as to
  create health. Now of all motions that is the best which is
  produced in a thing by itself, for it is most akin to the motion
  of thought and of the universe; but that motion which is caused
  by others is not so good, and worst of all is that which moves
  the body, when at rest, in parts only and by some external
  agency. Wherefore of all modes of purifying and re-uniting the
  body the best is gymnastic; the next best is a surging motion, as
  in sailing or any other mode of conveyance which is not
  fatiguing; the third sort of motion may be of use in a case of
  extreme necessity, but in any other will be adopted by no man of
  sense: I mean the purgative treatment of physicians; for diseases
  unless they are very dangerous should not be irritated by
  medicines, since every form of disease is in a manner akin to the
  living being, whose complex frame has an appointed term of life.
  For not the whole race only, but each individual—barring
  inevitable accidents—comes into the world having a fixed span,
  and the triangles in us are originally framed with power to last
  for a certain time, beyond which no man can prolong his life. And
  this holds also of the constitution of diseases; if any one
  regardless of the appointed time tries to subdue them by
  medicine, he only aggravates and multiplies them. Wherefore we
  ought always to manage them by regimen, as far as a man can spare
  the time, and not provoke a disagreeable enemy by medicines.

  Enough of the composite animal, and of the body which is a part
  of him, and of the manner in which a man may train and be trained
  by himself so as to live most according to reason: and we must
  above and before all provide that the element which is to train
  him shall be the fairest and best adapted to that purpose. A
  minute discussion of this subject would be a serious task; but
  if, as before, I am to give only an outline, the subject may not
  unfitly be summed up as follows.

  I have often remarked that there are three kinds of soul located
  within us, having each of them motions, and I must now repeat in
  the fewest words possible, that one part, if remaining inactive
  and ceasing from its natural motion, must necessarily become very
  weak, but that which is trained and exercised, very strong.
  Wherefore we should take care that the movements of the different
  parts of the soul should be in due proportion.

  And we should consider that God gave the sovereign part of the
  human soul to be the divinity of each one, being that part which,
  as we say, dwells at the top of the body, and inasmuch as we are
  a plant not of an earthly but of a heavenly growth, raises us
  from earth to our kindred who are in heaven. And in this we say
  truly; for the divine power suspended the head and root of us
  from that place where the generation of the soul first began, and
  thus made the whole body upright. When a man is always occupied
  with the cravings of desire and ambition, and is eagerly striving
  to satisfy them, all his thoughts must be mortal, and, as far as
  it is possible altogether to become such, he must be mortal every
  whit, because he has cherished his mortal part. But he who has
  been earnest in the love of knowledge and of true wisdom, and has
  exercised his intellect more than any other part of him, must
  have thoughts immortal and divine, if he attain truth, and in so
  far as human nature is capable of sharing in immortality, he must
  altogether be immortal; and since he is ever cherishing the
  divine power, and has the divinity within him in perfect order,
  he will be perfectly happy. Now there is only one way of taking
  care of things, and this is to give to each the food and motion
  which are natural to it. And the motions which are naturally akin
  to the divine principle within us are the thoughts and
  revolutions of the universe. These each man should follow, and
  correct the courses of the head which were corrupted at our
  birth, and by learning the harmonies and revolutions of the
  universe, should assimilate the thinking being to the thought,
  renewing his original nature, and having assimilated them should
  attain to that perfect life which the gods have set before
  mankind, both for the present and the future.

  Thus our original design of discoursing about the universe down
  to the creation of man is nearly completed. A brief mention may
  be made of the generation of other animals, so far as the subject
  admits of brevity; in this manner our argument will best attain a
  due proportion. On the subject of animals, then, the following
  remarks may be offered. Of the men who came into the world, those
  who were cowards or led unrighteous lives may with reason be
  supposed to have changed into the nature of women in the second
  generation. And this was the reason why at that time the gods
  created in us the desire of sexual intercourse, contriving in man
  one animated substance, and in woman another, which they formed
  respectively in the following manner. The outlet for drink by
  which liquids pass through the lung under the kidneys and into
  the bladder, which receives and then by the pressure of the air
  emits them, was so fashioned by them as to penetrate also into
  the body of the marrow, which passes from the head along the neck
  and through the back, and which in the preceding discourse we
  have named the seed. And the seed having life, and becoming
  endowed with respiration, produces in that part in which it
  respires a lively desire of emission, and thus creates in us the
  love of procreation. Wherefore also in men the organ of
  generation becoming rebellious and masterful, like an animal
  disobedient to reason, and maddened with the sting of lust, seeks
  to gain absolute sway; and the same is the case with the
  so-called womb or matrix of women; the animal within them is
  desirous of procreating children, and when remaining unfruitful
  long beyond its proper time, gets discontented and angry, and
  wandering in every direction through the body, closes up the
  passages of the breath, and, by obstructing respiration, drives
  them to extremity, causing all varieties of disease, until at
  length the desire and love of the man and the woman, bringing
  them together and as it were plucking the fruit from the tree,
  sow in the womb, as in a field, animals unseen by reason of their
  smallness and without form; these again are separated and matured
  within; they are then finally brought out into the light, and
  thus the generation of animals is completed.

  Thus were created women and the female sex in general. But the
  race of birds was created out of innocent light-minded men, who,
  although their minds were directed toward heaven, imagined, in
  their simplicity, that the clearest demonstration of the things
  above was to be obtained by sight; these were remodelled and
  transformed into birds, and they grew feathers instead of hair.
  The race of wild pedestrian animals, again, came from those who
  had no philosophy in any of their thoughts, and never considered
  at all about the nature of the heavens, because they had ceased
  to use the courses of the head, but followed the guidance of
  those parts of the soul which are in the breast. In consequence
  of these habits of theirs they had their front-legs and their
  heads resting upon the earth to which they were drawn by natural
  affinity; and the crowns of their heads were elongated and of all
  sorts of shapes, into which the courses of the soul were crushed
  by reason of disuse. And this was the reason why they were
  created quadrupeds and polypods: God gave the more senseless of
  them the more support that they might be more attracted to the
  earth. And the most foolish of them, who trail their bodies
  entirely upon the ground and have no longer any need of feet, he
  made without feet to crawl upon the earth. The fourth class were
  the inhabitants of the water: these were made out of the most
  entirely senseless and ignorant of all, whom the transformers did
  not think any longer worthy of pure respiration, because they
  possessed a soul which was made impure by all sorts of
  transgression; and instead of the subtle and pure medium of air,
  they gave them the deep and muddy sea to be their element of
  respiration; and hence arose the race of fishes and oysters, and
  other aquatic animals, which have received the most remote
  habitations as a punishment of their outlandish ignorance. These
  are the laws by which animals pass into one another, now, as
  ever, changing as they lose or gain wisdom and folly.

  We may now say that our discourse about the nature of the
  universe has an end. The world has received animals, mortal and
  immortal, and is fulfilled with them, and has become a visible
  animal containing the visible—the sensible God who is the image
  of the intellectual, the greatest, best, fairest, most
  perfect—the one only-begotten heaven.
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