Abstract

The purpose of this paper is to examine some contentions advanced by B. A. O. Williams in his books Descartes: The Project of Pure Enquiry and Ethics and the Limits of Philosophy . In particular I shall be concerned with the claims he makes about the nature of ethics—namely that it cannot be ‘objective’ or ‘realistic’ and that we may not hope for rational convergence in ethical judgments. My claims will be that Williams's case on these matters is importantly unclear and incomplete and that we lack cogent reasons to accept the conclusions he offers us. But a good deal of scene-setting is necessary before we can pose the questions I wish to address