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

Those who hear and do not understand are like the deaf. Of them the proverb says: "Present, they are absent."

Everything flows and nothing abides. Everything gives way and nothing stays fixed.

Man is on earth as in an egg.

To do the same thing over and over again is not only boredom: it is to be controlled by rather than to control what you do.

Couples are wholes and not wholes, what agrees disagrees, the concordant is discordant. From all things one and from one all things.

Men who love wisdom should acquaint themselves with a great many particulars.