The Wealth of Nations by Part 4 Chapter 7 Page 187

other part of the empire. The extraordinary revenue, too, which every province affords to the public in time of war, ought, from parity of reason, to bear the same proportion to the extraordinary revenue of the whole empire which its ordinary revenue does in time of peace.

That neither the ordinary nor extraordinary revenue which Great Britain derives from her colonies, bears this proportion to the whole revenue of the British empire, will readily be allowed. The monopoly, it has been supposed, indeed, by increasing the private revenue of the people of Great Britain, and thereby enabling them to pay greater taxes, compensates the deficiency of the public revenue of the colonies. But this monopoly, I have endeavoured to show, though a very grievous tax upon the colonies, and though it may increase the revenue of a