Life is an instinct for growth, for survival, for the accumulation of forces, for power.

Thus do I want man and woman to be: the one fit to wage war and the other fit to give birth, but both fit to dance with head and feet.

Sometimes people don't want to hear the truth because they don't want their illusions destroyed.

To be the equal of one's opponent-this is the first condition of an honourable duel.

In constructing concepts, we overlook the fact that no two things are the same. There is no such thing as the concept of a leaf, only billions and billions of leaves.

Many other such substitutes for war will be discovered, but perhaps precisely thereby it will become more and more obvious that such a highly cultivated and therefore necessarily enfeebled humanity as that of modern Europe not only needs wars, but the greatest and most terrible wars, consequently occasional relapses into barbarism, lest, by the means of culture, it should lose its culture and its very existence.

Who has not for the sake of his reputation sacrificed himself?