Present-day society is wholly based on the exploitation of the vast masses of the working class by a tiny minority of the population, the class of the landowners and that of the capitalists. It is a slave society, since the free workers, who all their life work for the capitalists, are entitled only to such means of subsistence as are essential for the maintenance of slaves who produce profit, for the safeguarding and perpetuation of capitalist slavery.

Collected Works, Vol. 10, pp. 83–87.