All our inventions have endowed material forces with intellectual life, and degraded human life into a material force.

The state is based on this contradiction. It is based on the contradiction between public and private life, between universal and particular interests. For this reason, the state must confine itself to formal, negative activities.

...the realm of freedom does not commence until the point is passed where labor under the compulsion of necessity and of external utility is required.

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.

In my free time I do differential and integral calculus.

This young lady, who instantly overwhelmed me with her kindness, is the ugliest creature I have seen in my entire life, with repulsive Jewish facial features.