preserved itself, but also realized its own capital-form, distinguished from m (78 pounds sterling), to which it stands in the relation of creator, m being its fruit, an increment born by it. It has realized its capital-form, because it is a value which has created more value. M' exists as a capital relation. M no longer appears as mere money, but it is explicitly used as money-capital, as a value which has utilized itself by creating a higher value than itself. M acts as capital by virtue of its relation to another part of M', which it has created. Thus M' appears as a sum of values expressing the capital relation, being differentiated into functionally different parts.
But this expresses only a result, without showing the intermediate process which caused it.
Parts of value as such are not qualitatively different from one another, except in so far as they are values of different articles, of concrete things, embodied in different use-values. They are values of different commodities, and this difference is not due to their character as exchange-values. In money, all differences of commodities are extinguished, because it is an equivalent form common to all of them. A sum of money of 500 pounds sterling consists of equal elements of one pounds sterling each. Since the intermediate links of descent are extinguished in the simple form of this sum of money. and all traces of the specific differences of the individual parts of capital in the productive process have disappeared, there exists only the mental distinction between the main sum of 422 pounds sterling, which was the capital advanced, and a surplus sum of 78 pounds sterling.
Or, again, let M' be equal to 110 pounds sterling, of which 100 may be equal to the main sum M and 10 equal to the surplus-value s. There is an absolute homogeneity, an absence of distinctions, between the two constituent parts of the sum of 110 pounds sterling. Any 10 pounds of this sum always constitute 1-11th of the sum of 110 pounds regardless of the fact that they are also 1-10th of the advanced main sum of 100 pounds, or the excess of 10 pounds above it. Main sum and surplus sum (capital and surplus-value), may simply be expressed as fractional parts of the total sum. In our illustration, 10-11th form the main sum, and 1-11th the surplus sum. Materialized capital, at the end of its cycle, therefore appears as an undifferentiated expression, the money expression, of the capital relation.
True, this applies also to C' (C plus c). But there is this difference, that C', of which C and c are also proportional parts of the same homogeneous mass of commodities, indicates its origin P, the immediate product of which it is, while in M', a form derived immediately from circulation, the direct relation to P is obliterated.
The undifferentiated distinction between the main sum and the surplus sum, which are contained in M', so far as this expresses the result of the movement M...M', disappears as soon as it performs its active function of money-capital and is not preserved as a fixed expression of materialized industrial capital. The circulation of money-capital can never begin with M' (although M' now performs the function of M). It can begin only with M, that is to say, it can never begin as an expression of the capital relation, but only as an advance of capital-value. As soon as the 500 pounds sterling are once more advanced as capital, in order to be again utilized, they constitute a point of departure, not one of conclusion. Instead of a capital of 422 pounds sterling, a capital of 500 pounds sterling is now advanced. It is more money than before, more capital-value, but the relation between its two constituent parts has disappeared. In fact, a sum of 500 pounds sterling might have served instead of the 422 pounds sterling as the original capital.
It is not an active function of money-capital to materialize in the form of M'; this is rather a function of C'. Even in the simple circulation of commodities, first in C-M, then in M-C2, money M does not figure actively until in the second movement, M-C.2 Its embodiment in the form of M is the result of the first act, by virtue of which it becomes a transformation of C.1 The capital relation contained in M', the relation of its constituent parts in the form of capital-value and surplus-value, assumes a functional importance only in so far as the repeated cycle M...M' splits M' into two circulations, one of them a circulation of capital, the other of surplus-value. In this case these two parts perform not only quantitatively, but also qualitatively different functions, M others than m. But considered by itself, M...M' does not include the consumption of the capitalist, but emphatically only the self-utilization and accumulation of money-capital, the latter function expressing itself at the outset as a periodical augmentation of ever renewed advances of money-capital.
Although M' (M plus m) is the undifferentiated form of capital, it is at the same time a materialization of money-capital, it is money which has generated more money. But this is different from the role played by money-capital in the first stage, M-C{LPm. In this first stage, M circulates as money. It assumes the functions of money-capital only because it cannot serve as money unless it assumes the form of money, because it cannot transform itself in any other way into the component parts of P, L and Pm, which stand opposed to it in the form of commodities. In this circulation act it serves as money. But as this act is the first stage in the circulation of capital-value, it is also a function of money-capital, by virtue of the specific use-value of the commodities L and Pm which are bought by it. M', on the other hand, composed of M, the capital-value, and m, the surplus-value created by M, stands for materialized capital-value, expresses the purpose and the outcome, the function of the total process of circulation of capital. The fact that it expresses this outcome in the form of money, of materialized money-capital, is due to the capital-character of money-capital, not to its money-character; for capital opened the process of circulation in the form of an advance of money. Its return to the money-form, as we have seen, is a function of C', not of money-capital. As for the difference between M and M', it is simply m, the money-form of c, the increment of C. For M' is composed of M plus m only because C' was composed of C plus c. In C', this difference and the relation of capital-value to its product, surplus-value, is already present and expressed, before both of them are transformed into M'. And in this form, these two values appear independently side by side and may, therefore, be employed in separate and distinct functions.
M' is the outcome of the materialization of C'. Both M' and C' are different forms of utilized capital-value, one of them the commodity, the other the money-form. Both of them share the quality of being utilized capital-value. Both of them are materialized capital, because capital-value here exists simultaneously with its product, surplus-value, although it is true that this relation is expressed in the undifferentiated form of the proportion of two parts of one and the same sum of money or commodity-value. But as expressions of capital, and in distinction from the surplus-value produced by it, M' and C' are the same and express the same thing, only in different forms. In so far as they represent utilized value, capital acting in its own role, they express the result of the function of productive capital, the only function in which capital-value generates more value. What is common to both of them, is that money-capital as well as commodity-capital are different modes of existence of capital. Their distinctive and specific functions cannot, therefore, be anything else but the difference between the functions of money and of commodities. Commodity-capital, the direct product of the capitalist process of production, indicates its capitalist origin and is, therefore, to that extent more rational and less difficult to understand than money-capital, in which every trace of this process has disappeared. In general, all special use-forms of commodities disappear in money.
It is only when M' itself figures as commodity-capital, when it is the direct outcome of a productive process, instead of being a transformed product of this process, that it loses its bizarre form, that is to say, in the production of money itself. In the production of gold, for instance, the formula would be M-C{LPm...P...M (M plus m), and M' would here figure as a commodity, because P furnishes more gold than had been advanced for the elements of production contained in the first money-capital M. In this case, the irrational nature of the formula M...M' (M plus m) disappears. Here a part of a certain sum of money appears as the mother of another part of the same sum of money.
IV. The Rotation as a Whole
We have seen that the process of circulation is interrupted at the end of its first phase, M-C{LPm. by P, which makes the commodities L and Pm parts of the substance and value of productive capital and