History calls those men the greatest who have ennobled themselves by working for the common good; experience acclaims as happiest the man who has made the greatest number of people happy.

In the various stages of development which the struggle of working class against the bourgeoisie has to pass through, they always and everywhere represent the interests of the movement as a whole.

Money degrades all the gods of man and converts them into commodities.

The task is not just to understand the world but to change it.

There are no circumstances imaginable, not even victory, under which the proletariat should give up its possession of arms.

In place of the old bourgeois society, with its classes and class antagonisms, we shall have an association in which the free development of each is the condition for the free development of all.

The bureaucracy is a circle from which one cannot escape. Its hierarchy is a hierarchy of knowledge. The top entrusts the understanding of detail to the lower levels, whilst the lower levels credit the top with understanding of the general, and so all are mutually deceived.