I am not bigoted enough for a system-and not even for my system.

What verse is for the poet, dialectical thinking is for the philosopher. He grasps for it in order to get hold of his own enchantment, in order to perpetuate it.

One ought to hold on to one's heart; for if one lets it go, one soon loses control of the head too.

Ten times must you laugh during the day, and be cheerful; otherwise your stomach, the father of affliction, will disturb you in the night.

My formula for happiness: a Yes, a No, a straight line, a goal.

Under conditions of peace the warlike man attacks himself.

The strength required for the vision of the most powerful reality is not only compatible with the most powerful strength for action, for monstrous action, for crime - it even presupposes it.