A casual stroll through the lunatic asylum shows that faith does not prove anything.

Live so that thou mayest desire to live again - that is thy duty - for in any case thou wilt live again!

Thoughts are the shadows of our feelings - always darker, emptier and simpler.

One should not wrongly reify 'cause' and 'effect,' as the natural scientists do (and whoever, like them, now 'naturalizes' in his thinking), according to the prevailing mechanical doltishness which makes the cause press and push until it 'effects' its end; one should use 'cause' and 'effect' only as pure concepts, that is to say, as conventional fictions for the purpose of designation and communication-not for explanation.

Fanatics are picturesque, mankind would rather see gestures than listen to reasons.

Immortal is the moment when I engendered the recurrence. For the sake of this moment I bear the recurrence.

With regard to philosophical metaphysics, I always see increasing numbers who have attained to the negative goal, but as yet few who climb a few rungs backwards; one ought to look out, perhaps, over the last steps of the ladder, but not try to stand upon them.