Stalin: Marx analyzed capitalism in order to elucidate the source of exploitation of the working class - surplus value - and to arm the working class, which was bereft of means of production, with an intellectual weapon for the overthrow of capitalism. It is natural that Marx used concepts (categories) which fully corresponded to capitalist relations. But it is strange, to say the least, to use these concepts now, when the working class is not only not bereft of power and means of production, but, on the contrary, is in possession of the power and controls the means of production. Talk of labour power being a commodity, and of "hiring" of workers sounds rather absurd now, under our system: as though the working class, which possesses means of production, hires itself and sells its labour power to itself. It is just as strange to speak now of "necessary" and "surplus" labour: as though, under our conditions, the labour contributed by the workers to society for the extension of production, the promotion of education and public health, the organization of defence, etc., is not just as necessary to the working class, now in power, as the labour expended to supply the personal needs of the worker and his family. It should be remarked that in his Critique of the Gotha Program, where it is no longer capitalism that he is investigating, but, among other things, the first phase of communist society, Marx recognizes labour contributed to society for extension of production, for education and public health, for administrative expenses, for building up reserves, etc., to be just as necessary as the labour expended to supply the consumption requirements of the working class. https://wordsmith.social/protestation/quotes#quote4899