This collection offers new perspectives on ethical naturalism, narrowly construed as the conjunction of two core theses. One holds that there are moral properties and facts, the other that at least some such properties and facts are natural properties and facts. Thus understood, ethical naturalism is distinct from, though usually motivated by, philosophical naturalism, a more general metaphysical outlook according to which all there is is the world as conceived by science. Clearly, philosophical naturalism does not entail ethical naturalism, for it is compatible also with eliminativist accounts of morality that either reject the ethical naturalist’s core theses altogether (as in the error theory) or deflate them substantially (as in.
