The Wealth of Nations by Part 4 Chapter 7 Page 103

establishments were effectuated, and had become so considerable as to attract the attention of the mother country, the first regulations which she made with regard to them had always in view to secure to herself the monopoly of their commerce; to confine their market, and to enlarge her own at their expense, and, consequently, rather to damp and discourage than to quicken and forward the course of their prosperity.

In the different ways in which this monopoly has been exercised consists one of the most essential differences in the policy of the different European nations with regard to their colonies. The best of them all, that of England, is only somewhat less illiberal and oppressive than that of any of the rest.

In what way, therefore, has the policy of Europe contributed either to