Featuring a new fifty-page interview with Hans J. Morgenthau by Bernard Johnson, this volume on the renowed scholar and philosopher demonstrates how pervasive is his mark on the study of international relations and political philosophy. The interview illuminates Morgenthau's intellectual development in Europe between the world wars and in the United States. It is in recognition of his unsurpassed contribution to the field of international relations and political philosophy that this collection of contributions from distinguished scholars has been assembled. The continuation and refinement of his work in this book prove the lasting value of his philosophical truths in the understanding of human nature, the role of power at all levels of society, and his concept of national interest.