The American Founders drew on an astonishingly wide range of historical sources and an appropriately jaundiced view of human nature to craft the world’s most stable and free republic. They invoked lessons learned from the Greek city-states, the Carolingian Dynasty, and the Ottoman Empire in the Constitution’s defense. And they assumed that the new nation’s citizens would themselves be versed in history and political philosophy. Indeed, a closer knowledge among the electorate of Hobbes and the fragility of social order might have prevented the more brazen social experiments that we’ve undergone in recent years. Ignorance of the intellectual trajectory that led to the rule of law and the West’s astounding prosperity puts those achievements at risk.