Book excerpt: A primer on the bedrock principles of politics from “Harvard’s most controversial conservative professor” and the author of Democracy in America (Boston magazine). Behind the daily headlines on presidential races and local elections is the theory of the polity—or what the end of our politics should be. Harvard’s Harvey C. Mansfield, one of America’s leading political theorists, explains why our quest for the good life must address the type of government we seek to uphold. He directs our gaze to the thinkers and philosophies and classic works that have proved most influential throughout the ages.