SummaryAfter exposing certain confusions , 1 give a sketch of a non‐metaphysical realism which involves the construction of a world‐O, mainly by means of criteria of invariance and of independence of variables.This world‐O facilitates description of the relationships of sensations among themselves and with actions. It includes the subject objectivized with his subjectivity , which makes it possible to describe without difficulty the relationship between this subject and the world. This realism reconstructs as it were realism from an idealist standpoint, (...) but allows for all the distinctions characteristic of realism: between illusion and reality, between that which represents and that which is represented, etc. Finally, the world‐O is not its own standard: the sensations for which it makes prediction are compared with those that are actually perceived, thus allowing its appropriateness to be verified. (shrink)

In various essays, Paul Churchland explores the relevance of studies in cognitive science to issues in ethics. What emerges is a kind of ethical naturalism that has two components. The first component is a descriptive‐genealogical one whose purpose is to explain how people come to have their ethical beliefs. The second component is a normative one whose purpose is to explain why some values are better than other values. Given this distinction, the problem of integrating ethics with beliefs about the (...) world is a consequence of the traditional view that it is possible to naturalize descriptive‐genealogical ethics but not normative ethics. With this distinction as background, I critically examine Churchland's exploration of cognitive science's contribution to our understanding of the values and purposes that should direct our lives. The conclusion is twofold. First, using concepts from the American pragmatists, I argue that, pace Churchland, it is possible to bridge the descriptive‐normative gap in order to articulate an ethical naturalism that addresses the so‐called naturalistic fallacy but is not committed to an unpalatable relativism. Second, I argue that the sort of ethical naturalism that emerges has affinities to the postmodern ethics of Jean‐François Lyotard. (shrink)