Date: 370-300 B.C.

"Moreover, the conclusion of this argument of yours is a fine one,--how that for every man who knows not how to make use of his soul it is better to have his soul at rest and not to live, than to live acting according to his own caprice; but if it is necessary for him to live, it is better after ...

— Plato (427 BC - 347 BC)

Date: c. 370-365 B.C.

"And of madness there were two kinds; one produced by human infirmity, the other was a divine release of the soul from the yoke of custom and convention."

— Plato (427 BC - 347 BC)

Date: 360-355 B.C.

"Perhaps, Socrates, we were wrong in making the birds stand for pieces of knowledge only, and we ought to have imagined pieces of ignorance flying about with them in the mind."

— Plato (427 BC - 347 BC)

Date: 360 B.C.

"For it does not admit of exposition like other branches of knowledge; but after much converse about the matter itself and a life lived together, suddenly a light, as it were, is kindled in one soul by a flame that leaps to it from another, and thereafter sustains itself."

— Plato (427 BC - 347 BC)

Date: 350 B.C.

"Suppose that the eye were an animal--sight would have been its soul, for sight is the substance or essence of the eye which corresponds to the formula, the eye being merely the matter of seeing; when seeing is removed the eye is no longer an eye, except in name"

— Aristotle (384-322 B.C.)

Date: 350 B.C.

"For the body is the soul's tool born with it, a slave is as it were a member or tool of his master, a tool is a sort of inanimate slave."

— Aristotle (384-322 B.C.)

Date: w. 350 B.C.

"The process of movement stamps in, as it were, a sort of impression of the percept, just as persons do who make an impression with a seal."

— Aristotle (384-322 B.C.)

Date: w. 350 B.C.

"This explains why, in those who are strongly moved owing to passion, or time of life, no memory is formed; just as no impression would be formed if the movement of the seal were to impinge on running water; while there are others in whom, owing to the receiving surface being frayed, as happens t...

— Aristotle (384-322 B.C.)

Date: 101

"I indeed think that the old man ought to be sitting here, not to contrive how you may have no mean thoughts nor mean and ignoble talk about yourselves, but to take care that there be not among us any young men of such a mind that, when they have recognized their kinship to God, and that we are f...

— Epictetus (c. 55-c.135)

Date: 170

"The heart is, as it were, the hearthstone and source of the innate heat by which the animal is governed."

— Galen (129-200)