The unity of the bourgeoisie can be shaken only by the unity of the proletariat.

If the labourer consumes his disposable time for himself, he robs the capitalist.

The English have all the material requisites for the revolution. What they lack is the spirit of generalization and revolutionary ardour.

Modern bourgeois society with its relations of production, of exchange, and of property, a society that has conjured up such gigantic means of production and of exchange, is like the sorcerer, who is no longer able to control the powers of the nether world whom he has called up by his spells.

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.

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.

The Communists have no need to introduce free love; it has existed almost from time immemorial.