The English have all the material requisites for the revolution. What they lack is the spirit of generalization and revolutionary ardour.
The history of all previous societies has been the history of class struggles.
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 ideas of the ruling class are in every epoch the ruling ideas, i.e., the class which is the ruling material force of society, is at the same time its ruling intellectual force.
The meaning of peace is the absence of opposition to socialism.
The more the division of labor and the application of machinery extend, the more does competition extend among the workers, the more do their wages shrink together.
The only antidote to mental suffering is physical pain.
The oppressed are allowed once every few years to decide which particular representatives of the oppressing class are to represent and repress them.
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.
The production of too many useful things results in too many useless people.
Revolutions are the locomotives of history.
The ruling ideas of each age have ever been the ideas of its ruling class.
The development of civilization and industry in general has always shown itself so active in the destruction of forests that everything that has been done for their conservation and production is completely insignificant in comparison.
The worker of the world has nothing to lose, but their chains, workers of the world unite.
The writer may very well serve a movement of history as its mouthpiece, but he cannot of course create it.