The free man is a warrior.

We talk about taking "pleasure in a thing": but in truth it is pleasure in ourselves, mediated by a thing.

We should conserve evil just as we should conserve the forests. It is true that by thinning and clearing the forests the earth grew warmer.

The one conclusive argument that has at all times discouraged people from drinking a poison is not that it kills but rather that it tastes bad.

Nothing on earth consumes a man more quickly than the passion of resentment.

A very popular error: having the courage of one's convictions; rather it is a matter of having the courage for an attack on one's convictions.

What is great in man is that he is a bridge and not a goal: what there is to love in man is that he is a going-over and a going-under.