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.

Bigotry is the sacred disease, and self-conceit tells lies.

Presumption must be quenched even more than a fire.

It is difficult to fight against anger; for a man will buy revenge with his soul.

All things come into being through opposition and all are in flux like a river

The most beautiful ape is ugly when compared to a human. The wisest human will seem like an ape when compared to a god with respect to wisdom, beauty, and everything else.

It is by disease that health is pleasant; by evil that good is pleasant; by hunger, satiety; by weariness, rest.