All great art is by its very essence in conflict with the society with which it exists. It expresses the truth about the existence regardless of whether this truth serves or hinders the survival purpose of a given society. All great art is revolutionary because it touches upon the reality of man and questions the reality of the various transitory forms of human society.
Erich FrommEvery society by its own practice of living and by the mode of relatedness, of feelings, and perceiving, develops a system of categories which determines the forms of awareness.
Erich FrommIn fact, there are very important writings of Marx which are not even translated into English.
Erich Fromm