Mixture of philosophy, social history, economics, and "social justice" propaganda: Dialectical Materialism, Historical Materialism, and Marxist Economics.
Divergent Paths—The Vision of Our Founders vs. the Plan of Marx
Marx believed that the bourgeoisie exploited the proletariat by keeping them in chains. He urged, "Workers of the world, unite! You have nothing to lose but your chains." Classical socialists believed that socialism was an imperfect stage before communism, where the means of production were owned by the state and workers were paid hourly for their work.
