He who fights with monsters should look to it that he himself does not become a monster. And if you gaze long into an abyss, the abyss also gazes into you.

One must still have chaos in oneself to be able to give birth to a dancing star.

Cynicism is the only form in which base souls approach what is called honesty.

Mystical explanations are considered deep. The truth is that they are not even superficial.

In everything one thing is impossible: rationality.

Whoever despises himself still respects himself as one who despises.

The man of knowledge must be able not only to love his enemies but also to hate his friends.

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

There are no facts, only interpretations.

That which does not kill us makes us stronger.

Beyond Good and Evil