Abstract

Moral realism is defined here as the ontological view that there are moral facts. This is compared with traditional views in moral philosophy, such as naturalism, nonnaturalism, and noncognitivism. It is argued that we have no good reasons to avoid inconsistencies among our moral views unless (we believe that) moral realism is true. Various counter-arguments to this claim are criticized. Moreover, it is argued that, since we do not want to give up the practice of moral reasoning, we have a good reason to believe that moral realism is true.