In this paper I analyze the tension between realism and antirealism at the basis of Kantian constructivism. This tension generates a conflictive account of the source of the validity of social norms. On the one hand, the claim to moral objectivity characteristic of Kantian moral theories makes the validity of norms depend on realist assumptions concerning the existence of shared fundamental interests among all rational human beings. I illustrate this claim through a comparison of the approaches of Rawls, Habermas and (...) Scanlon. On the other hand, however, objections to moral realism motivate many Kantian constructivists to endorse the antirealist claim that reasonable agreement is the source of the validity of social norms. After analyzing the difficulties in the latter strategy, I try to show how a balance between the realist and antirealist elements of Kantian constructivism can be reached by drawing a sharper distinction between the justice and the legitimacy of social norms. (shrink)

En este artículo se argumenta contra la interpretación metaética del kantianismo moral como una forma de constructivismo o antirealismo moral. Dado que los kantianos no comparten el expresivismo característico del antirealismo moral estándar, el constructivismo kantiano parece llevar a una posición inherentemente inestable que sólo puede desarrollarse o bien en un realismo consistente con el cognitivismo moral kantiano o en un decidido antirealismo moral. Tomando la ética del discurso de Habermas como ejemplo, aquí se contrasta una interpretación realista con una (...) interpretación antirealista del principio moral de universalización con la intención de mostrar que sólo la primera es compatible con el cognitivismo moral característico de las éticas kantianas, mientras que la segunda lleva inevitablemente a un planteamiento decisionista y, con ello, a un claro relativismo moral. (shrink)

Discourse ethics represents an exciting new development in neo-Kantian moral theory. William Rehg offers an insightful introduction to its complex theorization by its major proponent, Jürgen Habermas, and demonstrates how discourse ethics allows one to overcome the principal criticisms that have been leveled against neo-Kantianism. Addressing both "commun-itarian" critics who argue that universalist conceptions of justice sever moral deliberation from community traditions, and feminist advocates of the "ethics of care" who stress the moral significance of caring for other individuals, Rehg (...) shows that discourse ethics combines impartiality with solidarity. He provides the first systematic reconstruction of Habermas's theory and explores its relationship to the work of such contemporary philosophers as Charles Taylor. His book articulates a bold alternative to the split between the "right" and the "good" in moral theory and will greatly interest philosophers, social and legal scholars, and political theorists. (shrink)