n increasing immiseration of the proletariat occurs as the result of economic recessions; these recessions result because the working class is unable to buy the full product of their labors and the ruling capitalists do not consume all of the surplus value. A proletariat or socialist revolution must occur, according to Marx, where the state (the means by which the ruling class forcibly maintains rule over the other classes) is a dictatorship of the proletariat. Communism evolves from socialism out of this progression: the socialist slogan is “From each according to his ability, to each according to his work.” The communist slogan varies thusly: “From each according to his ability, to each according to his needs.”