Abstract: This book seeks to further the debate between ‘cognitivists’ and ‘non-cognitivists’ about the possibility and the nature of moral knowledge. The book is divided into four parts. Part I presents the theoretical framework for the revision of cognitivism. Part II examines the challenge to the revised form of cognitivism developed from two sophisticated forms of non-cognitivist strategy: expressive/projective strategy and non-objectivism. Part III develops proposals for the solution of the problems described in Parts I and II. Part IV focuses on the work of John Rawls.

Keywords: cognitivism, expressivism, projectivism, John Rawls