Abstract

Over twenty years after the publication of A Theory of Justice (1971), Rawls avowed that it was an error in Theory to describe a theory of justice as part of the theory of rational choice. This paper elucidates the reasons why Rawls had to make such an avowal of the error in connection with his contractarian rational deduction project of morality, i.e., rational contractarianism. Two major issues are involved here. They are about the construction of the original position and the maximin derivation of the two principles of justice. Because of the moral irrelevancy of rationality in Hobbes’ model, Rawls tries to construct a fair original position. Hence Rawls’ rational contractarianism turns out rationality cum fairness model. However, this model of Rawls’ commits the circularity of moral assumptionsprior to rationality, which might be rationally arbitrary. Furthermore, because of its highly conservative psychological attitude of risk-aversion, Rawls cannot show the superior rationality in the maximin strategic derivation of the two principles of justice over the other strategies. These are the reasons why Rawls had to admit the error. After the avowal of the error, Rawls shifted to Kantian conception of free and equal moral persons for the justificatory device of his theory of justice. Several polemical issues around the Kantian conception are discussed and adjudicated.