“Every commodity has value in so far as it incorporates
socially necessary labour time, and is the outcome of a social process
of production. It enters the process of exchange as a bearer of value.
This is the sense of Marx's remark that, `the act of exchange gives to
the commodity converted into money, not its value, but its specific
value form'. /Capital, /vol. I, p. 103. [MECW 35, p101]”