"Philosophers have hitherto only interpreted the world in various ways; the point is to change it."

"The worker has nothing to lose but his chains. He has a world to win."

"The proletariat, the lowest stratum of our present society, cannot stir, cannot raise itself up, without the whole superincumbent strata of official society being sprung into the air."

"Capital is dead labour, which, vampire-like, only lives by sucking living labour, and lives the more, the more labour it sucks."

"The more the worker spends himself, the more powerful becomes the alien world of objects which he creates over and against himself, the poorer he himself — his inner world — becomes, the less belongs …"