Electrifying when first delivered in 1973, legendary in the years since, Dieter Henrich's lectures on German Idealism were the first contact a major German philosopher had made with an American audience since the onset of World War II. They remain one of the most eloquent explanations and interpretations of classical German philosophy and of the way it relates to the concerns of contemporary philosophy. Thanks to the editorial work of David Pacini, the lectures appear here with annotations linking them to editions of the masterworks of German philosophy as they are now available.