In this collection of essays, John Dunn brings his characteristically acute and penetrative insight to a wide range of political issues. In the first essay, 'The history of political theory', Professor Dunn argues for the importance of a historical perspective in the study of political thought. Other pieces engage with central concepts of political philosophy such as obligation, trust, freedom of conscience and property. A group of studies tackle specific contemporary problems and future dangers, for example racism and the dilemma of humanitarian intervention. The volume as a whole articulates the many dangers, but also the huge importance of, contemporary politics, and provides a representative collection of work by one of the most astute political commentators writing today.