No man ever steps in the same river twice, for it's not the same river and he's not the same man.
All things come into being through opposition and all are in flux like a river
Couples are wholes and not wholes, what agrees disagrees, the concordant is discordant. From all things one and from one all things.
The fairest harmony springs from discord.
Dogs, also, bark at what they do not know.
A blow to the head will confuse a man's thinking, a blow to the foot has no such effect, this cannot be the result of an immaterial soul.