agriculture; whereas, on the other hand, the earth’s spontaneous productions being in small quantity, and quite independent of man, appear, as it were, to be furnished by nature, in the same way as a small sum is given to a young man, in order to put him in a way of industry, and of making his fortune. The small sum sets him a-going, but it is his industry which makes the fortune. From this illustration it appears, that if the demand for food can be more readily supplied from abroad than from home, it will be the foreign subsistence, which will preserve numbers, produced from _industry_, not from _domestic agriculture_; and these numbers will, in their turn, produce an advancement of it at home, by inspiring a desire in the husbandman to acquire the equivalent which their countrymen give to strangers. Such nations, whose statesmen have not the talent to engage the husbandmen to wish for the equivalent, which the labour of their fellow-citizens can produce; or, in other words, who cannot create reciprocal wants and dependencies among their subjects, must stand in a moral incapacity of augmenting in numbers. Of such states we have no occasion to treat in this chapter, any more than of those who are supposed to be in the physical incapacity of multiplying: our point of view is, to examine the natural consequences resulting from a demand for subsistence extending itself to foreign countries. This I take to be the mother of industry at home, as well as of trade abroad; two objects which come to be treated of in the second book. A country may be fully peopled (in the sense we understand this term) in several different ways. It may be fully stocked at one time with six millions, and at another may maintain perhaps eight or even nine millions with ease, without the soil’s being better cultivated or improved. On the other hand, a country may maintain twenty millions with ease, and by being improved as to the soil, become overstocked with fifteen millions. These two assertions must be explained. The more frugal a people are, and the more they feed upon the plentiful productions of the earth, the more they may increase in numbers.