My conception of freedom. — The value of a thing sometimes does not lie in that which one attains by it, but in what one pays for it — what it costs us. Liberal institutions cease to be liberal as soon as they are attained: later on, there are no worse and no more thorough injurers of freedom than liberal institutions.

You may have enemies whom you hate, but not enemies whom you despise. You must be proud of your enemy: then the success of your enemy shall be your success too.

Since Copernicus, man seems to have got himself on an inclined plane-now he is slipping faster and faster away from the center into-what? into nothingness? into a 'penetrating sense of his nothingness?' ... all science, natural as well as unnatural-which is what I call the self-critique of knowledge-has at present the object of dissuading man from his former respect for himself, as if this had been but a piece of bizarre conceit.

Good manners disappear in proportion as the influence of a Court and an exclusive aristocracy lessens; this decrease can be plainly observed from decade to decade by those who have an eye for public behavior, which grows visibly.

Verily, a polluted stream is man. One must actually be a sea to take in a polluted stream without becoming impure. Behold, I teach you the superman: he is the this sea, in him can your great contempt go under.

Be generous in nature and thought; for this wins respect and gives confidence and power.

Untroubled, scornful, outrageous - that is how wisdom wants us to be: she is a woman and never loves anyone but a warrior.