Life is not determined by consciousness, but consciousness by life.

I am a machine, condemned to devour them and then, throw them, in a changed form, on the dunghill of history.

There is no greater stupidity than for people...to marry and so surrender themselves to the small miseries of domestic and private life.

All science would be superfluous if the outward appearance and the essence of things directly coincided.

Greek philosophy seems to have met with something with which a good tragedy is not supposed to meet, namely, a dull ending.

The more a ruling class is able to assimilate the most prominent men of a ruled class, the more solid and dangerous its rule.

One of the most difficult tasks confronting philosophers is to descend from the world of thought to the actual world.