Without contradiction, there would be no life, no movement, no progress, a deadly slumber of all forces.

“The I think, I am, is, since Descartes, the basic mistake of all knowledge; thi…”

“Far from it being true that man and his activity makes the world comprehensible…”

“Nothing upsets the philosophical mind more than when he hears that from now on …”

“man’s being is essentially his own deed.”