Every past is worth condemning.

The value of a man can only be measured with regard to other men.

Truth is a mobile army of metaphors, metonyms, anthropomorphisms, in short a sum of human relations which have been subjected to poetic and rhetorical intensification, translation and decoration […]; truths are illusions of which we have forgotten that they are illusions, metaphors which have become worn by frequent use and have lost all sensuous vigour […]. Yet we still do not know where the drive to truth comes from, for so far we have only heard about the obligation to be truthful which society imposes in order to exist" from, "On Truth and Lying in a Non-Moral Sense".

It is only great pain--that slow, sustained pain that takes its time, in which we are, as it were, burned with smoldering green firewood--that forces us philosophers to sink to our ultimate profundity and to do away with all the trust, everything good-natured, veil-imposing, mild and middling, on which we may have previously based our humanity. I doubt that such a pain makes us 'better'--but I know that it makes us deeper.

If ye would go up high, then use your own legs! Do not get yourselves carried aloft; do not seat yourselves on other people's backs and heads!

The definition of morality: Morality is the idiosyncrasy of decadents having the hidden desire to revenge themselves upon life - and being successful.

I have found strength where one does not look for it: in simple, mild, and pleasant people, without the least desire to rule -- and, conversely, the desire to rule has often appeared to me a sign of inward weakness: they fear their own slave soul and shroud it in a royal cloak (in the end, they still become the slaves of their followers, their fame, etc.)