Be careful when you fight the monsters, lest you become one.

The good four. Honest with ourselves and with whatever is friend to us; courageous toward the enemy; generous toward the vanquished; polite-always that is how the four cardinal virtues want us.

God created woman. And boredom did indeed cease from that moment-but many other things ceased as well!

A matter that becomes clear ceases to concern us.

Forgetting: that is a divine capacity. And whoever aspires to the heights and wants to fly must cast off much that is heavy and make himself light--I call it a divine capacity for lightness.

We must be physicists in order to be creative since so far codes of values and ideals have been constructed in ignorance of physics or even in contradiction to physics.

Whoever has overthrown an existing law of custom has always first been accounted a bad man: but when, as did happen, the law could not afterwards be reinstated and this fact was accepted, the predicate gradually changed; - history treats almost exclusively of these bad men who subsequently became good men!