Karl Marx — "The ruling ideas of each age have ever been the ideas of its ruling class."

"Has a real taler any existence except in the imagination, if only in the general or rather common imagination of man? Bring paper money into a country where this use of paper is unknown, and everyone …"

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

"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 …"

"Legal relations, as well as forms of state, are to be grasped neither from themselves nor from the so-called general development of the human mind, but rather have their roots in the material conditio…"

"The proletariat will use its political supremacy to wrest, by degrees, all capital from the bourgeoisie, to centralise all instruments of production in the hands of the State, i.e., of the proletariat…"