The Wealth of Nations by Part 4 Chapter 7 Page 100

Folly and injustice seem to have been the principles which presided over and directed the first project of establishing those colonies; the folly of hunting after gold and silver mines, and the injustice of coveting the possession of a country whose harmless natives, far from having ever injured the people of Europe, had received the first adventurers with every mark of kindness and hospitality.

The adventurers, indeed, who formed some of the later establishments, joined to the chimerical project of finding gold and silver mines other motives more reasonable and more laudable; but even these motives do very little honour to the policy of Europe.

The English Puritans, restrained at home, fled for freedom to America, and established there the four governments of New England.