Modern readers meet Adam Smith, if at all, as a caricature: on neckties, in op-ed articles, as a critic of government, a prophet of markets and laissez-faire. This think-tank version grossly distorts his significance. Like his friend Benjamin Franklin, Smith was astoundingly wide and deep: founder of a modern social science, moral philosopher, a man of affairs, and a superb writer as well. Thomas Jefferson, John Adams, Alexander Hamilton read his books. He was, if not a founding father of the American republic, a favorite uncle. His very universality makes it difficult to isolate his specific contributions as the originator…