All things are subject to interpretation whichever interpretation prevails at a given time is a function of power and not truth.

The moral earth, too, is round! The moral earth, too, has its antipodes! The antipodes, too, have their right to exist! There is still another world to be discovered--and more than one! Set sail, you philosophers!

Over immense periods of time the intellect produced nothing but errors. A few of these proved to be useful and helped to preserve the species: those who hit upon or inherited these had better luck in their struggle for themselves and their progeny. Such erroneous articles of faith... include the following: that there are things, substances, bodies; that a thing is what it appears to be; that our will is free; that what is good for me is also good in itself.

The broad effects which can be obtained by punishment in man and beast, are the increase of fear, the sharpening of the sense of cunning, the mastery of the desires; so it is that punishment tames man, but does not make him "better.".

I enquire now as to the genesis of a philologist and assert the following: 1. A young man cannot possibly know what Greeks and Romans are. 2. He does not know whether he is suited for finding out about them.

Thinking about suicide is a potent consolation: it helps us to get through many a bad night.

A change of values - that means, a change of the creators of values. He who has to be a creator always has to destroy.