HKB
the revenue of a state, cannot, therefore, be considered of the same importance as an increase of food, which forms the principal revenue of the great mass of the people.
Foreign commerce adds to the wealth of a state, according to Dr Adam Smith's definition, though not according to the definition of the economists. Its principal use, and the reason, probably, that it has in general been held in such high estimation is that it adds greatly to the external power of a nation or to its power of commanding the labour of other countries; but it will be found, upon a near examination, to contribute but little to the increase of the internal funds for the maintenance of labour, and consequently but little to the happiness of the greatest part of society. In the natural progress of a state towards riches, manufactures, and foreign commerce would follow, in their order, the high cultivation of the soil. In Europe, this natural order of things has been inverted, and the soil has been cultivated from the redundancy of manufacturing capital, instead of manufactures rising from the redundancy of capital employed upon land. The superior encouragement that has been given to the industry of the towns, and the consequent higher price that is paid for the labour of artificers than for the labour of those employed in husbandry, are probably the reasons why so much soil in Europe remains uncultivated. Had a different policy been pursued throughout Europe, it might undoubtedly have been much more populous than at present, and yet not be more incumbered by its population.
I cannot quit this curious subject of the difficulty arising from population, a subject that appears to me to deserve a minute investigation and able discussion much beyond my power to give it, without taking notice of an extraordinary passage in Dr Price's two volumes of Observations. Having given some tables on the probabilities of life, in towns and in the country, he says (Vol. II, p. 243):
From this comparison, it appears with how much truth great cities have been called the graves of mankind. It must also convince all who consider it, that according to the observation, at the end of the fourth essay, in the former volume, it is by no means strictly proper to consider our diseases as the original intention of nature. They are, without doubt, in general our own creation. Were there a country where the inhabitants led lives entirely natural and virtuous, few of them would die without measuring out the whole period of present existence allotted to them; pain and distemper would be unknown among them, and death would come upon them like a sleep, in consequence of no other cause than gradual and unavoidable decay.