been only ideal money and in fact figured merely as a money name of commodities—is now turned into actual money66 by the same process. Just as gold became the ideal universal equivalent, because all commodities measured their values by it, so does it now become the absolutely alienable commodity, real money, because it is the product of the universal alienation of commodities for it—and the sale C—M is the process by means of which that universal alienation takes place. But gold becomes real money only through sale, because the exchange values of commodities were already ideal gold in
In the sale C—M, as well as in the purchase M—C, two commodities, entities of exchange value and use-value, confront each other, but the exchange value of the commodity exists only ideally as price; while as regards gold, although it is really a use-value, its use-value is confined only to its being the bearer of exchange value and is, therefore, merely a formal use-value, having no relation to a real individual want. The antithesis of use-value and exchange value is thus distributed at the two extreme poles of C—M, so that the commodity confronts gold as a use-value which has yet to realize in gold its exchange value or its price, while gold confronts the commodity as an exchange value, whose formal use-value is yet to be realized in the commodity. Only through this duplication of the commodity as commodity and gold, and, further, through the twofold and polar relation by virtue of which each extreme represents but ideally what its opposite is in reality and is in reality what its opposite is only ideally—in short, only through the appearance of commodities as two-sided polar opposites are the contradictions solved that are inherent in the process of exchange.