By bourgeoisie is meant the class of modern capitalists, owners of the means of social production and employers of wage labor. By proletariat, the class of modern wage laborers who, having no means of production of their own, are reduced to selling their labor power in order to live.
Karl Marx, Friedrich Engels (2014). “The Communist Manifesto: with selections from The Eighteenth Brumaire of Louis Bonaparte and Capital by Karl Marx”, p.9, John Wiley & Sons
