The wants of mankind are supplied and satisfied out of the gross values produced and created, and not out of the net values only. - Jean-Baptiste Say

Every individual, from the common mechanic, that works in wood or clay, to the prime minister that regulates with the dash of his pen the agriculture, the breeding of cattle, the mining, or the commerce of a nation, will perform his business the better, the better he understands the nature of things,and the more his understanding is enlightened.

But, is it possible for princes and ministers to be enlightened, when private individuals are not so?

When war becomes a trade, it benefits, like all other trades, from the division of labour.