Public Reason Naturalism

I will argue that the natural law theory of morality, when extended into a political theory of justice, results in a picture of political justice much like that of public reason liberalism. However, natural law political theory, I argue, need not entail a natural law theory of morality. While facts about what societies ought to do supervene upon facts about what is good for human beings, there are distinct goods involved and distinct reasons for action. Rather, considerations taken from the common good as guiding public policy results in a two-layer approach to public reasonability, resembling features of both consensus and convergence accounts of public reason. Consequently, the differences between natural law and classical public reason liberalism are significant but are not as significant as might have otherwise appeared. In fact, natural law political theory might be a more consistent development of the idea of a public reason than those of classical liberalism.