 Third and finally, it might be helpful to clarify the relationship between moral anti-realism and moral naturalism. The moral naturalist believes that moral facts exist and fit within the worldview presented by science. (For example, a utilitarian view that identifies moral obligation with the production of happiness will count as a form of moral naturalism, since there is nothing particularly scientifically mysterious about happiness.) A moral naturalist may maintain that moral facts are objective in nature, in which case this moral naturalist will count as a moral realist. But a moral naturalist may instead maintain that the moral facts are not objective in nature, in which case this moral naturalist will count as a moral anti-realist. Consider, for example, a simplistic non-objectivist theory that identifies moral goodness (say) with whatever a person approves of. Such a view would be a form of anti-realism (in virtue of its non-objectivism), but since the phenomenon of people approving of things is something that can be accommodated smoothly within a scientific framework, it would also be a form of moral naturalism. Conversely, if a moral realist maintains that the objective moral facts cannot be accommodated within the scientific worldview, then this moral realist will count as a moral non-naturalist. (See entries for  naturalism  and  moral naturalism.)