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.

Does not the discipline of the scientific spirit just commence when one no longer harbours any conviction?

When we stand the truth on its head we generally fail to notice that our head is not standing where it should be standing either.

Loving and perishing: it's been a rhyme all these eternities. The will to love: that is, also being willing to die.

It is not the strengths, but the durations of great sentiments that make great men.

Compassion for the friend should conceal itself under a hard shell.

Man, however, is the most courageous animal: thereby has he overcome every animal. With sound of triumph has he overcome every pain; human pain, however, is the sorest pain.