The length of the journey has to be borne with, for every moment is necessary.

No man is a hero to his valet. This is not because the hero is no hero, but because the valet is a valet.

The courage of the truth is the first condition of philosophic study.

World history is a court of judgment.

Only one man ever understood me, and he didn't understand me

Since philosophy is the exploration of the rational, it is for that very reason the apprehension of the present and the actual, not the erection of a beyond, supposed to exist, God knows where, or rather which exists, and we can perfectly well say where, namely in the error of a one-sided, empty, ratiocination.

Every idea, extended into infinity, becomes its own opposite.