Our conscience is not the vessel of eternal verities. It grows with our social life, and a new social condition means a radical change in conscience. ↗
A poem may be an instance of morality, of social conditions, of psychological history; it may instance all its qualities, but never one of them alone, nor any two or three; never less than all. ↗
Because capitalist society has expanded the productive forces so enormously, the social conditions under which it arose lag behind and become fetters holding back the further growth of productive forces. ↗