Abstract

The contemporary debate on the metaphysical side of metaethics is dominated by two paradigms—reductive naturalism and primitivist non- naturalism. It is argued here that these are both extreme views. In principle, it should be possible for there to be a host of intermediate views between these two extremes. In fact, most of the views that were taken on these metaphysical questions by philosophers of ancient and medieval times differed from both reductive naturalism and primitivist non-naturalism. However, the metaphysical views of these past philosophers cannot easily be endorsed today. This is because our conception of the natural world has changed from that of these premodern thinkers, because of the development of modern natural science. Nonetheless, it is still possible to make sense of intermediate positions, lying between the two extremes of reductive naturalism and primitivist non- naturalism. These intermediate positions are prima facie promising, and deserve careful consideration from contemporary metaethicists.