II. FIVE TYPES OF ETHICAL NATURALISM

and their validation within the ordinary experiences and aspirations of men."1 According to another, naturalism is the view that no non-scientific objects exist.2 Yet another philosopher defines naturalism as the theory that moral injunctions are "deducible from features of moral language."3 Other more obscure formulations abound;4 and of course no list of naturalistic theories would be complete which did not mention the more traditional versions such as: