Scott Woodcock has levied a number of objections against Aristotelian naturalism which claims that ethical norms are grounded by reason and biology. His most recent “membership objection” is a synthesis of earlier objections and consists in a trilemma. If Aristotelian naturalists answer the first horn of the trilemma by stipulating that determinations of species-membership are grounded non-empirically, and the second horn of the trilemma by stipulating rationality is species-specific, then they are confronted by a moral outsider—someone who claims that they (...) have non-empirically determined their species membership and are thus guided by different norms of rationality than the rest of us. This permits the moral outsider to act heinously without moral sanction from Aristotelian naturalism. Critics have neglected Alasdair MacIntyre’s Aristotelian naturalism. And he has faced moral-outsider-type counterexamples before. I develop a new response to counterexamples MacIntyre’s account has faced and argue that MacIntyre’s Aristotelian naturalism is able to answer Woodcock’s membership objection. I do this by developing an empirical taxonomy-based approach that enables us to justify the moral outsider’s responsibilities while preserving the best of Aristotelian naturalism. (shrink)

Constitutivism holds that an account of what a thing is yields those normative standards to which that thing is by nature subject. We articulate a minimal form of constitutivism that we call _formal, non-epistemological constitutivism_ which diverges from orthodox versions of constitutivism in two main respects. First: whereas orthodox versions of constitutivism hold that those ethical norms to which people are by nature subject are sui generis because of their special capacity to motivate action and legitimate criticism, we argue that (...) these features are compatible with treating these norms as of a piece with those ‘formal’ natural-historical norms which can be used to assess living things. Second: unlike orthodox versions of constitutivism, our version does not seek to use a non-normative account of that kind of being which we are as a means of identifying those normative claims to which we are are by nature subject. We then indicate how our position can afford us the resources to address some of the familiar difficulties that face cognitivism in ethics. (shrink)

Prima facie the norms of natural-teleology conflict with norms of morality and rationality. Morality often rejects behaviours that can promote natural-success, and we can have reasons to act in ways that conflict with natural-imperatives. That’s a problem for Attributivism, which dictates that what one ought to do is exhausted in satisfying the standards of one’s kind, and thus that members of natural-kinds ought ultimately to do that which is naturally good. I argue that standard responses are inadequate. I argue further (...) however that the impression of conflict owes to a failure to appreciate the context-sensitivity and holistic interdependence of natural-norms. Natural-norms fluctuate relative to circumstance and to the needs of overall flourishing; once that’s clearly understood, not only does the impression of conflict between natural and moral/rational norms resolve, but we find Attributivism plausibly explains many rational/moral practices/intuitions. (shrink)