History does nothing; it does not possess immense riches, it does not fight battles. It is men, real, living, who do all this.

The Tories in England had long imagined that they were enthusiastic about the monarchy, the church and beauties of the old English Constitution, until the day of danger wrung from them the confession that they are enthusiastic only about rent.

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

Once the inner connection is grasped, all theoretical belief in the permanent necessity of existing conditions collapses before their collapse in practice -- Letter to Ludwig Kugelmann (July 11, 1868)

There are, besides, eternal truths, such as Freedom, , etc., that are common to all states of society. But Communism abolishes eternal truths, it abolishes all religion, and all morality, instead of constituting them on a new basis; it therefore acts in contradiction to all past historical experience.

The philosophers have only interpreted the world, in various ways: the point, however, is to change it.

Every emancipation is a restoration of the human world and of human relationships to a man himself.