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

Since only what is material is perceptible, knowable, nothing is known of the existence of God.

In proportion as capital accumulates, the lot of the laborer, be his payment high or low, must grow worse.

The whole proletariat must be armed at once with muskets, rifles, cannon and ammunition, and the revival of the old-style citizens militia, directed against the workers, must be opposed.

In a higher phase of communist society... only then can the narrow horizon of bourgeois right be fully left behind and society inscribe on its banners: from each according to his ability, to each according to his needs.

Work is external to the worker. . . . It is not part of his nature; consequently he does not fulfill himself in his work but denies himself. . . . The worker therefore feels himself at home only during his leisure time, whereas at work he feels homeless.

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.