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In proportion as the bourgeoisie, i.e., capital, is developed, in

the same proportion is the proletariat, the modern working class,

developed-a class of labourers, who live only so long as they

find work, and who find work only so long as their labour

increases capital. These labourers, who must sell themselves

piece-meal, are a commodity, like every other article of

commerce, and are consequently exposed to all the vicissitudes of

competition, to all the fluctuations of the market.