There can be no other truth to take off from than this: I think, therefore, I exist. There we have the absolute truth of consciousness becoming aware of itself.

Metaphysics is the finding of bad reasons for what we believe upon instinct, but to find these reasons is no less an instinct.

If a little knowledge is dangerous, where is a man who has so much as to be out of danger?

In the consciousness of the truth he has perceived, man now sees everywhere only the awfulness or the absurdity of existence... and loathing seizes him.

I donna .. but think it is not true