The history of all previous societies has been the history of class struggles.

The criticism of Religion is the beginning of all criticism

When the sufferers learn to think, then the thinkers will learn to suffer.

But, you will say, we destroy the most hallowed of relations, when we replace home education by social.... The Communists have not invented the intervention of society in education; they do but seek to alter the character of that intervention, and to rescue education from the influence of the ruling class.

Men's ideas are the most direct emanations of their material state.

Philosophy stands in the same relation to the study of the actual world as masturbation to sexual love.

Under private property, each tries to establish over the other an alien power, so as thereby to find satisfaction of his own selfish need. The increase in the quantity of objects is therefore accompanied by an extension of the realm of the alien powers to which man is subjected, and every new product represents a new potentiality of mutual swindling and mutual plundering.