Everything flows, nothing stays still.

Many who have learned from Hesiod the countless names of gods and monsters never understand that night and day are one

Wisdom is one thing, to know how to make true judgment, how all things are steered through all things.

All things are in flux; the flux is subject to a unifying measure or rational principle. This principle (logos, the hidden harmony behind all change) bound opposites together in a unified tension, which is like that of a lyre, where a stable harmonious sound emerges from the tension of the opposing forces that arise from the bow bound together by the string.

Time is a game played beautifully by children.

There is nothing permanent except change.

There is but one world common for those who are awake, but when men are asleep, each turns away into a world of his own.