The Wealth of Nations by Part 4 Chapter 7 Page 91

There is more equality, therefore, among the English colonists than among the inhabitants of the mother country. Their manners are more republican, and their governments, those of three of the provinces of New England in particular, have hitherto been more republican too.

The absolute governments of Spain, Portugal, and France, on the contrary, take place in their colonies; and the discretionary powers which such governments commonly delegate to all their inferior officers are, on account of the great distance, naturally exercised there with more than ordinary violence. Under all absolute governments there is more liberty in the capital than in any other part of the country. The sovereign himself can never have either interest or inclination to pervert the order of justice, or to oppress the great body of the people.