4. Since M', the money-capital realised as a result of C' — M',
 the complementary and concluding phase of M — C, has absolutely the same
 form as that in which it began its first circuit, it can, as soon as it
 emerges from the latter, begin the same circuit over again as an increased
 (accumulated) money-capital; M' = M + m. And at least it is not expressed
 in the form M ... M' that, in the repetition of the circuit, the circulation
 of m separates from that of M. Considered in its one-time form, formally,
 the circuit of money-capital expresses therefore simply the process of
 self-expansion and of accumulation. Consumption is expressed in it only
 as productive consumption, 
 by M — C<LMP, and
 it is only this consumption that is included in this circuit of individual
 capital. M — L is L — M or C — M on the part of the labourer. It is therefore the first phase of circulation which brings about his individual consumption,
 thus: L — M — C (means of subsistence). The second phase M — C, no longer falls within the circuit of individual capital, but is initiated and premised
 by it, since the labourer must above all live, hence maintain himself by
 individual consumption, in order to always be in the market as material
 that the capitalist can exploit. But this consumption itself is here only
 assumed as a condition for the productive consumption of labour-power by
 capital, hence only to the extent that the worker maintains and reproduces
 himself as labour-power by means of his individual consumption. However
 the MP, the commodities proper which enter into the circuit of capital,
 are nutriment for the productive consumption only. The act L — M promotes
 the individual consumption of the labourer, the transformation of the means
 of subsistence into his flesh and blood. True, the capitalist must also
 be there, must also live and consume to be able to perform the function
 of a capitalist. To this end, he has, indeed, to consume only as much as
 the labourer, and that is all this form of the circulation process presupposes.
 But even this is not formally expressed, since the formula concludes with
 M', i.e., a result which can at once resume its function as money-capital,
 now augmented.