History calls those men the greatest who have ennobled themselves by working for the common good; experience acclaims as happiest the man who has made the greatest number of people happy.

Private property has made us so stupid and one-sided that an object is only ours when we have it

There are no circumstances imaginable, not even victory, under which the proletariat should give up its possession of arms.

The more of himself man attributes to God, the less he has left in himself.

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

All I know is I'm not a Marxist.

Mankind always sets itself only such tasks as it can solve; since, looking at the matter more closely, we will always find that the task itself arises only when the material conditions necessary for its solution already exist or are at least in the process of formation.