But capital not only lives upon labor. Like a master, at once distinguished and barbarous, it drags with it into its grave the corpses of its slaves, whole hecatombs of workers, who perish in the crises.

— Karl Marx

But, in general, the protective system of our day is conservative, while the free trade system is destructive. It breaks up old nationalities and pushes the antagonism of the proletariat and the bourgeoisie to the extreme point. In a word, the free trade system hastens the social revolution. It is in this revolutionary sense alone, gentlemen, that I vote in favor of free trade.

— Karl Marx

By buying the power of the workman, the capitalist has, therefore, acquired the right to use of make that laboring power during the whole day or week.

— Karl Marx

Capital is dead labor that vampirelike lives only by sucking living labor and lives the more labor it sucks.

— Karl Marx

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

— Karl Marx

Capital is money, capital is commodities. By virtue of it being value, it has acquired the occult ability to add value to itself. It brings forth living offspring, or, at the least, lays golden eggs.

— Karl Marx

Capitalism: Teach a man to fish, but the fish he catches aren't his. They belong to the person paying him to fish, and if he's lucky, he might get paid enough to buy a few fish for himself.

— Karl Marx

Capital is reckless of the health or length of life of the laborer, unless under compulsion from society.

— Karl Marx

Capitalist production, therefore, develops technology, and the combining of various processes into a social whole, only by sapping the original sources of all wealth - the soil and the laborer.

— Karl Marx

Christ represents originally: 1) men before God; 2) God for men; 3) men to man. Similarly, money represents originally, in accordance with the idea of money: 1) private property for private property; 2) society for private property; 3) private property for society. But Christ is alienated God and alienated man. God has value only insofar as he represents Christ, and man has value only insofar as he represents Christ. It is the same with money.

— Karl Marx