Beauty is the main positive form of the aesthetic assimilation of reality, in which aesthetic ideal finds it direct expression.

Philosophy is to science as masturbation is to sex.

There are no bigger donkeys than these workers.... Look at our 'craftsmen'; Sad that world history should be be made with such people.

As, in religion, man is governed by the products of his own brain, so in capitalistic production, he is governed by the products of his own hand.

What the bourgeoisie therefore produces, above all, are its own grave-diggers. Its fall and the victory of the proletariat are equally inevitable.

Nothing is more tedious than the dreaming platitude.

Both for the production on a mass scale of this communist consciousness, and for the success of the cause itself, the alteration of men on a mass scale is necessary, an alteration which can only take place in a practical movement, a revolution; this revolution is necessary, therefore, not only because the ruling class cannot be overthrown in any other way, but also because the class overthrowing it can only in a revolution succeed in ridding itself of all the muck of ages and become fitted to found society anew.