The Wealth of Nations by Part 4 Chapter 7 Page 112

that increase of enjoyments and industry which Europe derives from the discovery and colonization of America; and the exclusive trade of the mother countries tends to render this source much less abundant than it otherwise would be.

The particular advantages which each colonizing country derives from the colonies which particularly belong to it are of two different kinds; first, those common advantages which every empire derives from the provinces subject to its dominion; and, secondly, those peculiar advantages which are supposed to result from provinces of so very peculiar a nature as the European colonies of America.

The common advantages which every empire derives from the provinces subject to its dominion consist, first, in the military force which they furnish for its defence; and,