Metaphysical world.- It is true, there could be a metaphysical world; the absolute possibility of it is hardly to be disputed. We behold all things through the human head and cannot cut off this head; while the question nonetheless remains what of the world would still be there if one had cut it off.

One must not let oneself be misled: they say 'Judge not!' but they send to Hell everything that stands in their way.

A book full of brilliance imparts some of it even to its opponents.

One must learn to be a sponge if one wants to be loved by hearts that overflow.

Very early in my life I took the question of the relation of art to truth seriously: even now I stand in holy dread in the face of this discordance. My first book was devoted to it. The Birth of Tragedy believes in art on the background of another belief

One has to know the size of one's stomach.

The radical hostility, the deadly hostility against sensuality, is always a symptom to reflect on: it entitles us to suppositions concerning the total state of one who is excessive in this manner.