This article seeks to understand the challenges of formulating a postfoundational model of moral discourse. Invoking Richard Bernstein's vision of pragmatism as a philosophy of communication and rational choice without foundations, it compares and contrasts two theorists of moral discourse: Jürgen Habermas and Alasdair MacIntyre. The article explores the strengths and weaknesses of their respective models of moral discourse and offers some reflections on the limits of postfoundational reason.