Idleness is the beginning of all psychology. What? Could it be that psychology is ? a vice?

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

We have no organ at all for knowledge, for truth: we know (or believe or imagine) precisely as much as may be useful in the interest of the human herd, the species: and even what is here called usefulness is in the end only a belief, something imagined and perhaps precisely that most fatal piece of stupidity by which we shall one day perish.

We become aware, however, that all customs, even the hardest, grow pleasanter and milder with time, and that the severest way of life may become a habit and therefore a pleasure.

Your highest thought, however, ye shall have it commanded unto you by me - and it is this: man is something that is to be surpassed.

He who bestows something great receives no gratitude; for in accepting it the recipient has already been weighed down too much.

One begins to mistrust very clever people when they become embarrassed.