Karl Marx: Capital and labour relate to each other here like money and commodity; the former is the general form of wealth, the other only the substance destined for immediate consumption. Capital’s ceaseless striving towards the general form of wealth drives labour beyond the limits of its natural paltriness, and thus creates the material elements for the development of the rich individuality which is as all-sided in its production as in its consumption, and whose labour also therefore appears no longer as labour, but as the full development of activity itself, in which natural necessity in its direct form has disappeared; because natural need has been replaced by historically produced need. This is why capital is productive; i.e. an essential relation for the development of the social productive forces. It ceases to exist as such only where the development of these productive forces themselves encounters its barrier in capital itself. https://wordsmith.social/protestation/quotes#quote7806