Friedrich Engels — "The proletariat alone is a really revolutionary class."

"The state, then, has not existed from all eternity. There have been societies that did without it, that had no idea of the state and state power. At a certain stage of economic development, which was …"

"It is not enough to abolish the existing relations of property, but rather to revolutionize them, to abolish the old relations of production in general, and with them the old conditions of society."

"The capitalist mode of appropriation, the result of the capitalist mode of production, produces capitalist private property. This is the first negation of individual private property, as founded on th…"

"The need of a constantly expanding market for its products chases the bourgeoisie over the whole surface of the globe. It must nestle everywhere, settle everywhere, establish connections everywhere."

"The world is not to be interpreted, but to be changed."