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Plato : THEAETETUS
Persons of the dialogue: Socrates - Theodorus - Theaetetus - Euclid - Terpsion = Note by Elpenor |
This Part: 42 Pages
Part 1 Page 14
Soc. And is not the bodily habit spoiled by rest and idleness, but preserved for a long time by motion and exercise?
Theaet. True.
Soc. And what of the mental habit? Is not the soul informed, and improved, and preserved by study and attention, which are motions; but when at rest, which in the soul only means want of attention and study, is uninformed, and speedily forgets whatever she has learned?
Theaet. True.
Soc. Then motion is a good, and rest an evil, to the soul as well as to the body?
Theaet. Clearly.
Soc. I may add, that breathless calm, stillness and the like waste and impair, while wind and storm preserve; and the palmary argument of all, which I strongly urge, is the golden chain in Homer, by which he means the sun, thereby indicating that so long as the sun and the heavens go round in their orbits, all things human and divine are and are preserved, but if they were chained up and their motions ceased, then all things would be destroyed, and, as the saying is, turned upside down.
Theaet. I believe, Socrates, that you have truly explained his meaning.
Soc. Then now apply his doctrine to perception, my good friend, and first of all to vision; that which you call white colour is not in your eyes, and is not a distinct thing which exists out of them. And you must not assign any place to it: for if it had position it would be, and be at rest, and there would be no process of becoming.
Theaet. Then what is colour?
Soc. Let us carry the principle which has just been affirmed, that nothing is self - existent, and then we shall see that white, black, and every other colour, arises out of the eye meeting the appropriate motion, and that what we call a colour is in each case neither the active nor the passive element, but something which passes between them, and is peculiar to each percipient; are you quite certain that the several colours appear to a dog or to any animal whatever as they appear to you?
Theaet. Far from it.
Theaetetus part 2 of 2. You are at part 1
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