For art to exist, for any sort of aesthetic activity to exist, a certain physiological precondition is indispensable: intoxication.

In every party there is one person who, through his dotingly credulous enunciation of party principles, incites the other members to defection.

God is dead, God remains dead, and we have killed him.

Our greatest experiences are our quietest moments.

Without the errors involved in the assumptions of ethics, man would have remained an animal. Thus has he taken himself as something higher and imposed rigid laws upon himself.

The criminal type is the type of the strong human being under unfavorable circumstances: a strong human being made sick.

It is certainly not the least charm of a theory that it is refutable; it is precisely thereby that it attracts the more subtle minds. It seems that the hundred-times-refuted theory of the "free will" owes its persistence to this charm alone; some one is always appearing who feels himself strong enough to refute it.