History repeats itself, first as tragedy, second as farce.
Society does not consist of individuals but expresses the sum of interrelations, the relations within which these individuals stand.
The writer must earn money in order to be able to live and to write, but he must by no means live and write for the purpose of making money.
Social progress can be measured by the social position of the female sex.
Revolutions are the locomotives of history.
Let the ruling classes tremble at a communist revolution. The proletarians have nothing to lose but their chains. They have a world to win. Workingmen of all countries, unite!
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.
The rich will do anything for the poor but get off their backs.
In bourgeois society capital is independent and has individuality, while the living person is dependent and has no individuality.
The ruling ideas of each age have ever been the ideas of its ruling class.
The worker of the world has nothing to lose, but their chains, workers of the world unite.
We should not say that one man's hour is worth another man's hour, but rather that one man during an hour is worth just as much as another man during an hour. Time is everything, man is nothing: he is at the most time's carcass.
Nothing can have value without being an object of utility.
If anything is certain, it is that I myself am not a Marxist.
Greek philosophy seems to have met with something with which a good tragedy is not supposed to meet, namely, a dull ending.
Men's ideas are the most direct emanations of their material state.
Machines were, it may be said, the weapon employed by the capitalists to quell the revolt of specialized labor.
There is a specter haunting Europe, the specter of Communism.
The human being is in the most literal sense a political animal, not merely a gregarious animal, but an animal which can individuate itself only in the midst of society.
The product of mental labor - science - always stands far below its value, because the labor-time necessary to reproduce it has no relation at all to the labor-time required for its original production.