To call a thing good not a day longer than it appears to us good, and above all not a day earlier - that is the only way to keep joy pure.

The less men are fettered by tradition, the greater becomes the inward activity of their motives, and greater again in proportion to their outer restlessness.

Whoever turns away from us might not offend us in doing so perhaps, but he certainly offends our followers.

A man who wills commands something within himself that renders obedience, or that he believes renders obedience.

On the heights it is warmer than people in the valley suppose, especially in winter. The thinker recognizes the full import of this simile.

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.

It is certainly not the least charm of a theory that it is refutable.