Dworkin's work has provoked a number of criticisms, centering around two important issues with which he is concerned : the nature of judicial discretion, and the nature and existence of individual rights. Carty considers the exchanges that have taken place on these questions between some principal Anglo-American theorists : Dworkin himself, Joseph Raz, Neil MacCormick and Michael Sandel. Carty emphasises Dworkin's refusal to deal with the metaphysical aspects of these issues, and argues that he must make clear his conception of the human agent whose freedom he is so concerned to protect.L'œuvre de Dworkin a suscité de nombreuses critiques, qui tiennent à l'importance des questions qu'il soulève : le pouvoir discrétionnaire des juges, l'exis...