"Politics Among Nations" is a seminal work by Hans Morgenthau, published in 1948. It explores the principles of international relations and the nature of power in global politics. Morgenthau argues that political actions are driven by the pursuit of power, emphasizing the importance of national interest in shaping foreign policy. The book outlines six principles of political realism, which highlight the competitive and conflictual aspects of international relations. It serves as a foundational text for understanding how states interact, the role of ethics in politics, and the impact of human nature on global affairs.