The quantity of money, on the contrary, must in every country naturally increase as the value of the annual produce increases. The value of the consumable goods annually circulated within the society being greater, will require a greater quantity of money to circulate them. A part of the increased produce, therefore, will naturally be employed in purchasing, wherever it is to be had, the additional quantity of gold and silver necessary for circulating the rest. The increase of those metals will, in this case, be the effect, not the cause, of the public prosperity. Gold and silver are purchased everywhere in the same manner. The food, clothing, and lodging, the revenue and maintenance, of all those whose labour or stock is employed in bringing them from the mine to the market, is the price paid for them in Peru as well as in England. The country which has this price to pay, will never belong without the quantity of those metals which it has occasion for; and no country will ever long retain a quantity which it has no occasion for.
Whatever, therefore, we may imagine the real wealth and revenue of a country to consist in, whether in the value of the annual produce of its land and labour, as plain reason seems to dictate, or in the quantity of the precious metals which circulate within it, as vulgar prejudices suppose; in either view of the matter, every prodigal appears to be a public enemy, and every frugal man a public benefactor.
The effects of misconduct are often the same as those of prodigality. Every injudicious and unsuccessful project in agriculture, mines, fisheries, trade, or manufactures, tends in the same manner to diminish the funds destined for the maintenance of productive labour. In every such project, though the capital is consumed by productive hands only, yet as, by the injudicious manner in which they are employed, they do not reproduce the full value of their consumption, there must always be some diminution in what would otherwise have been the productive funds of the society.