Abstract

The circumstance that on the one hand the daily sustenance of labour power costs only half a day's labor, while on the other hand the very same labor power can work during a whole day, that consequently the value which its use during one day creates is double what he [the capitalist] pays for that use, this circumstance is without a doubt a piece of good luck for the buyer but by no means an injustice [Unrecht] to the seller [the worker].[T]he surplus product [is] the tribute annually exacted from the working class by the capitalist class. Though the latter with a portion of that tribute purchases the additional labor power even at its full price, so that equivalent is exchanged for equivalent, yet the transaction is for all that only the old dodge of every conqueror who buys commodities from the conquered with the money he has robbed them of.