of production being labor, capital, and land, it has been seen from the preceding chapter that the impediments to the increase of production do not arise from the first of these elements. But production has other requisites, and, of these, the one which we shall next consider is Capital. There can not be more people in any country, or in the world, than can be supported from the produce of past labor until that of present labor comes in [although it is not to be supposed that capital consists wholly of food]. We have next, therefore, to inquire into the conditions of the increase of capital: the causes by which the rapidity of its increase is determined, and the necessary limitations of that increase.
Since all capital is the product of saving, that is, of abstinence from present consumption for the sake of a future good, the increase of capital must