This slim volume can be read as a handbook for the restoration of truth to its rightful place at the throne of human reason. In the essays presented here, Dietrich von Hildebrand dismantles the various intellectual and political movements that have worked to undermine truth over the last century: relativism, skepticism, materialism, historicism, psychologism, Communism, and Nazism. He shows the utter insufficiency of such arguments and reveals their common root in the denial of God and people's attempts to be like gods themselves. To anyone who has looked at the modern world and wondered how did we get here? and how do we get out? this book shows the way.