Date: c. 501 B.C.

"For souls it is death to become water, and for water death to become earth. Water comes into existence out of earth, and soul out of water."

— Heraklitus (fl. 504-1 BCE)

Date: c. 501 B.C.

"[He used to say that] there is a greater need to extinguish hybris than there is a blazing fire."

— Heraklitus (fl. 504-1 BCE)

Date: c. 501 B.C.

"One would never discover the limits of soul, should one traverse every road--so deep a measure does it possess."

— Heraklitus (fl. 504-1 BCE)

Date: c. 501 B.C.

"[He used to say that] thinking is an instance of the sacred disease and that sight is deceptive."

— Heraklitus (fl. 504-1 BCE)

Date: c. 501 B.C.

"It is difficult to fight with one's heart's desire. Whatever it wishes to get, it purchases at the cost of soul."

— Heraklitus (fl. 504-1 BCE)

Date: c. 501 B.C.

"[And Heraclitus said, admirably that those] souls have the sense of smell in Hades."

— Heraklitus (fl. 504-1 BCE)

Date: c. 501 B.C.

"Poor witnesses for people are eyes and ears if they possess barbarian souls."

— Heraklitus (fl. 504-1 BCE)

Date: c. 501 B.C.

"A man, when he gets drunk, is led by a beardless lad, tripping, knowing not where he steps, having his soul moist."

— Heraklitus (fl. 504-1 BCE)

Date: c. 501 B.C.

"A dry gleam of light is the wisest and best soul."

— Heraklitus (fl. 504-1 BCE)

Date: c. 390 B.C.

"And if the soul too, my dear Alcibiades, is to know herself, she must surely look at a soul [like an eye looking into the pupil of another eye], and especially at that region of it in which occurs the virtue of a soul--wisdom, and at any other part of a soul which resembles this?"

— Plato (427 BC - 347 BC)