Workers of the world, (will) unite!

Karl Marx : Political Theorist
In his statement for the Communist Party, Marx predicted here would be an eventual revolution of the working class, proletariat, against the owners of the means of production, the bourgeois, and the eventual creation of a classless society without private property, inheritance, with a state-controlled economy and system of free education.

Karl Marx, The Communist Manifesto. (1848). Ebook (Progress Publishers, Moscow, 1969).