It appears, then, that in the same country, and at the same time, the exchangeable value of those commodities which can be resolved into labour and profits alone, would be accurately measured by the quantity of labour which would result from adding to the accumulated and immediate labour actually worked up in them the varying amount of the profits on all the advances estimated in labour. But this must necessarily be the same as the quantity of labour which they will command, as appears from the instances above stated, and will be more fully shown farther on; and where the precious metals may be considered for short periods as of a uniform value, the conformity of this measure with the proportions of money prices at which commodities would be exchanging all around us, might daily be brought to the test of experience and be established beyond the possibility of doubt. It will be said, perhaps, that in the same place, and at the same time, almost every commodity may be considered as an accurate measure of the relative value of others, and that what is true of labour in this respect is true of cloth, cotton, iron, or any other article. Any two commodities which, at the same time, and in the same place, will purchase or command the same quantity of cloth, cotton, or iron, of a given quality, will have the same relative value, or will exchange with each other. This will be readily granted, if we take the same time and place exactly, and consider only relative value; but not if either any latitude be allowed as to time and place, or if we consider, as it is our object to do, not merely relative, but absolute and natural value. Cloth, cotton, iron, and similar commodities, are subject to vary most essentially in a single year, or even month, so that the manufacturer who could obtain for his goods the same quantity of cloth as he could the year before, would be very little likely to obtain the same quantity of other articles. But even supposing that these articles and the product of the capitalist were to continue of the same relative value to each other, he might still be quite unable to carry on his business. The conditions of the supply of commodities do not require that they should retain always the same relative values, but that each should retain its proper _natural_ value, or the means of obtaining those objects which will continue to the producer the same power of production and accumulation. If the advances of capitalists consisted specifically in cloth, then these advances would always have the effect required in production; and as profits are calculated upon the advances necessary to production, whatever they may be, the quantity of cloth advanced, with the addition of the ordinary profits estimated also in quantity of cloth, would represent both the natural and relative value of the commodity. But the specific advances of capitalists do not consist of cloth, but of labour; and as no other object whatever can