But the production and exchange of commodities, while compelling the society based on them to take this roundabout way, likewise compel it to make the detour as short as possible. They single out from the commonalty of commodities one sovereign commodity in which the value of all other commodities can be expressed once and for all; a commodity which serves as the direct incarnation of social labour, and is therefore directly and unconditionally exchangeable for all commodities -- money. Money is already contained in embryo in the concept of value; it is value, only in developed form. But since the value of commodities, as opposed to the commodities themselves, assumes independent existence in money, a new factor appears in the society which produces and exchanges commodities, a factor with new social functions and effects. We need only state this point at the moment, without going more closely into it.
The political economy of commodity production is by no means the only science which has to deal with factors known only relatively. The same is true of physics, where we do not know how many separate gas molecules are contained in a given volume of gas, pressure and temperature being also given. But we know that, so far as Boyle's law is correct, such a given volume of any gas contains as many molecules as an equal volume of any other gas at the same pressure and temperature. We can therefore compare the molecular content of the most diverse volumes of the most diverse gases under the most diverse conditions of pressure and temperature; and if we take as the unit one litre of gas at 0° C and 760 mm pressure, we can measure the above molecular content by this unit. -- In chemistry the absolute atomic weights of the various elements are also not known to us. But we know them relatively, inasmuch as we know their reciprocal relations. Hence, just as commodity production and its economics obtain a relative expression for the unknown quantities of labour contained in the various commodities, by comparing these commodities on the basis of their relative labour content, so chemistry obtains a relative expression for the magnitude of the atomic weights unknown to it by comparing the various elements on the basis of their atomic weights, expressing the atomic weight of one element in multiples or fractions of the other (sulphur, oxygen, hydrogen). And just as commodity production elevates gold to the level of the absolute commodity, the general equivalent of all other commodities, the measure of all values, so chemistry promotes hydrogen to the rank of the chemical money commodity, by fixing its atomic weight at 1 and reducing the atomic weights of all other elements to hydrogen, expressing them in multiples of its atomic weight.
Commodity production, however, is by no means the only form of social production. In the ancient Indian communities and in the family communities of the southern Slavs, products are not transformed into commodities.
The members of the community are directly associated for production; the work is distributed according to tradition and requirements, and likewise the products to the extent that they are destined for consumption. Direct social production and direct distribution preclude all exchange of commodities, therefore also the transformation of the products into commodities (at any rate within the community) and consequently also their transformation into values.
From the moment when society enters into possession of the means of production and uses them in direct association for production, the labour of each individual, however varied its specifically useful character may be, becomes at the start and directly social labour. The quantity of social labour contained in a product need not then be established in a roundabout way; daily experience shows in a direct way how much of it is required on the average. Society can simply calculate how many hours of labour are contained in a steam-engine, a bushel of wheat of the last harvest, or a hundred square yards of cloth of a certain quality. It could therefore never occur to it still to express the quantities of labour put into the products, quantities which it will then know directly and in their absolute amounts, in a third product, in a measure which, besides, is only relative, fluctuating, inadequate, though formerly unavoidable for lack of a better one, rather than express them in their natural, adequate and absolute measure, time. Just as little as it would occur to chemical science still to express atomic weight in a roundabout way, relatively, by means of the hydrogen atom, if it were able to express them absolutely, in their adequate measure, namely in actual weights, in billionths or quadrillionths of a gramme. Hence, on the assumptions we made above, society will not assign values to products. It will not express the simple fact that the hundred square yards of cloth have required for their production, say, a thousand hours of labour in the oblique and meaningless way, stating that they have the value of a thousand hours of labour. It is true that even then it will still be necessary for society to know how much labour each article of consumption requires for its production. It will have to arrange its plan of production in accordance with its means of production, which include, in particular, its labour-powers. The useful effects of the various articles of consumption, compared with one another and with the quantities of labour required for their production, will in the end determine the plan. People will be able to manage everything very simply, without the intervention of much-vaunted "value". *15The concept of value is the most general and therefore the most comprehensive expression of the economic conditions of commodity production.
Consequently, this concept contains the germ, not only of money, but also of all the more developed forms of the production and exchange of commodities.
