All progress in capitalist agriculture is a progress in the art, not only of robbing the working, but of robbing the soil; all progress in increasing the fertility of the soil for a given time is a progress towards the more long-lasting sources of that fertility. The more a country proceeds from large-scale industry as the background of its development, as in the case of the United States, the more rapid is this process of destruction. Capitalist production, therefore, only develops the techniques and the degree of combination of the social process of production but simultaneously undermining the original sources of all wealth – the soil and the worker. (Capital: volume 1, Penguin p. 638)6Please respect copyright.PENANADAXSp4cmNM