"This book argues for moral contractarianism, the view that moral justification rests on the idea of agreement. It critically appraises the views of contemporary contractarians such as John Rawls, David Gauthier, and Thomas Scanlon. It argues for a theory of moral justification that is based on a hypothetical agreement of restricted scope between strangers in the circumstances of justice and that is bound by historical place and circumstance."--BOOK JACKET.