Every man who has declared that some other man is an ass or a scoundrel, gets angry when the other man conclusively shows that the assertion was erroneous.

But he who is hated by the people, as the wolf by the dogs - is the free spirit, the enemy of fetters, the non-adorer, the dweller in the woods.

Gradually it has become clear to me what every great philosophy so far has been: namely, the personal confession of its author and a kind of involuntary and unconscious memoir.

Lift up your hearts, my brothers, high, higher! And don't forget about your legs either! Lift up your legs as well, you good dancers, and better yet--stand also on your heads!

Was mich nicht zugrunde richtet, macht mich starker.

It is not when truth is dirty, but when it is shallow, that the lover of knowledge is reluctant to step into its waters.

To be natural means to dare to be as immoral as Nature is.