So far no chemist has ever discovered exchange-value either in a pearl or a diamond.

My object in life is to dethrone God and destroy capitalism.

Luxury is the opposite of the naturally necessary.

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

Anyone who knows anything of history knows that great social changes are impossible without feminine upheaval. Social progress can be measured exactly by the social position of the fair sex, the ugly ones included.

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.

Science and democracy are the right and left hands of what I'll refer to as the move from the realm of necessity to the realm of freedom.