> Why this free worker confronts him in the sphere of circulation is a question which does not interest the owner of money, for he finds the labour-market in existence as a particular branch of the commodity-market. And for the present it interests us just as little. We confine ourselves to the fact theoretically, as he does practically. One thing, however, is clear: nature does not produce on the one hand owners of money or commodities, and on the other hand men possessing nothing but their own labour-power. This relation has no basis in natural history, nor does it have a social basis common to all periods of human history, It is clearly the result of a past historical development, the product of many economic revolutions, of the extinction of a whole series of older formations of social production.