Man is a two-legged animal without feathers.

We ought to live sacrificing, and singing, and dancing.

Too much attention to health is a hindrance to learning, to invention, and to studies of any kind, for we are always feeling suspicious shootings and swimmings in our heads, and we are prone to blame studies from them.

No one is a friend to his friend who does not love in return.

It is not noble to return evil for evil, at no time ought we to do an injury to our neighbors.

Injustice is censured because the censures are afraid of suffering, and not from any fear which they have of doing injustice.

Anything worth knowing is already known and must be remembered and reclaimed by the soul.