Whether we immoralists do any harm to virtue?-Just as little as anarchists do to princes. It is only because they have been shot at that they once again sit securely on their thrones. Moral: we must shoot at morals.

School has no task more important than to teach strict thought, cautious judgment, and logical conclusions, hence it must pay no attention to what hinders these operations, such as religion, for instance.

Foolish is my happiness, and foolish things will it speak: it is still too young—so have patience with it!

A man unconsciously imagines that where he is strong, where he feels most thoroughly alive, the element of his freedom must lie.

The people we have employed in an undertaking that has turned out badly should be doubly rewarded.

Growth in wisdom can be measured precisely by decline in bile.

Is it not better to fall into the hands of a murderer, than into the dreams of a lustful woman?