All sciences are now under the obligation to prepare the ground for the future task of the philosopher, which is to solve the problem of value, to determine the true hierarchy of values.

Where do your greatest dangers lie?--In pity.

Every deep thinker is more afraid of being understood than of being misunderstood.

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

Whoever thought that he had understood something of me had merely construed something out of me, after his own image.

God created woman. And boredom did indeed cease from that moment-but many other things ceased as well!

The strongest knowledge (that of the total freedom of the human will) is nonetheless the poorest in successes: for it always has the strongest opponent, human vanity.