It is so characteristic, that just when the mechanics of reproduction are so vastly improved, there are fewer and fewer people who know how the music should be played.

If in life we are surrounded by death, so too in the health of our intellect by madness.

Genius is talent in which character makes itself heard.

Since social relationships are always ambiguous, since my thought is only a unit, since my thoughts create rifts as much as they unite, since my words establish contacts by being spoken and create isolation by remaining unspoken, since an immense moat separates the subjective certitude that I have for myself from the objective reality that I represent to others, since I never stop finding myself guilty even though I feel I am innocent.

Where two principles really do meet which cannot be reconciled with one another, then each man declares the other a fool and a heretic

In philosophy it is always good to put a question instead of an answer to a question. For an answer to the philosophical question may easily be unfair; disposing of it by means of another question is not.

Resting on your laurels is as dangerous as resting when you are walking in the snow. You doze off and die in your sleep.