"Some men are sordid, some vain, some ambitious. To detect the predominant passion, to lay hold of it, is the profound part of political science."
— James Wilkinson, as quoted in American Emperor: Aaron Burr's Challenge to Jefferson's America By David O. Stewart. Wilkinson was a double agent paid by Spain for more than two decades, general in chief of the Continental Army and later governor of the Louisiana Territory. He plotted with Burr but later turned on him.