Zarathustra was the first to consider the fight of good and evil the very wheel in the machinery of things: the transposition of morality into the metaphysical realm, as a force, cause, and end in itself, is his work. [...] Zarathustra created this most calamitous error, morality; consequently, he must also be the first to recognize it.

Mothers easily become jealous of their sons' friends when they are particularly successful. As a rule a mother loves herself in her son more than she does the son himself.

We do not place especial value on the possession of a virtue until we notice its total absence in our opponent.

The love of power is the demon of mankind.

The errors of great men are venerable because they are more fruitful than the truths of little men.

My abyss speaks, I have turned my ultimate depth inside out into the light.

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.