When self control is lacking in small things, the ability to apply it to matters of importance withers away. Every day in which one does not at least deny himself some trifle is badly spent and a threat to the day following.

Look not into the sun! Even the moon is too bright for your nocturnal eyes!

In the knowledge of truth, what really matters is the possession of it, not the impulse under which it was sought.

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.

Where is the lightning to lick you with its tongue? Where is the madness with which you should be cleansed? Behold, I show you the Superman. He is this lightning, he is this madness.

A man should not play the coward to his deeds. He should not repudiate them once he has performed them. Pangs of conscience are indecent.

What is done out of love always occurs beyond good and evil.