Just as the author focuses on what we owe one another as citizens in his packed Harvard class, he challenges listeners to think our way through hard moral challenges we confront – from dissent and morality to killing and truth. This audiobook shows how a surer grasp of philosophy can help us make sense of politics and our own convictions. PBS will air a series based on the course in the fall of 2009. "[He] has a rare gift for making complex issues comprehensible, even entertaining... erudite, conversational, and deeply humane."—Publishers Weekly