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.
There is a specter haunting Europe, the specter of Communism.
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.
While the miser is merely a capitalist gone mad, the capitalist is a rational miser.
Without doubt, machinery has greatly increased the number of well-to-do idlers.
Workers of the world unite; you have nothing to lose but your chains.
Men's ideas are the most direct emanations of their material state.
Greek philosophy seems to have met with something with which a good tragedy is not supposed to meet, namely, a dull ending.
Social progress can be measured by the social position of the female sex.
The rich will do anything for the poor but get off their backs.
Necessity is blind until it becomes conscious. Freedom is the consciousness of necessity.
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!
Machines were, it may be said, the weapon employed by the capitalists to quell the revolt of specialized labor.
The first requisite for the happiness of the people is the abolition of religion.
It is not history which uses men as a means of achieving - as if it were an individual person - its own ends. History is nothing but the activity of men in pursuit of their ends.