timaeus   

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 dears 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 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