In this classic work, newly reissued here with a preface by Oliver Kamm, Norman Geras discusses a central aspect of the experience of the Holocaust with a view to exploring its most important contemporary implications. A bold and powerful synthesis of memorial, literary record, historical reflection and political theory, Geras's argument focuses on the figure of the bystander - the bystander to the destruction of the jews of Europe and the bystander to more recent atrocity - to consider the moral consequences of looking on without active responses at persecution and great suffering. This book argues that we owe a duty of help to those who are suffering under terrible oppression. Geras argues that the tragedy of European Jewry - so widely pondered by historians, social scientists, psychologists, theologians and others - has not yet found its proper reflection within political philosophy. Attempting to fill the gap, he adapts an old idea from within that tradition of enquiry, the idea of the social contract, to the task of thinking about the triangular relation between perpetrators, victims and bystanders, and draws on sombre conclusion from it. Geras goes on to ask how far this conclusion may be offset by the hypothesis of a universal duty to bring aid. The contract of mutual indifference is an original and challenging work, aimed at the complacent abstraction of much contemporary theory-building. It is supplemented by three shorter essays on the implications of the Jewish catastrophe for conceptions of human nature and progress..