If Simpson understands that for Hart the rule of recognition is itself customary, he is then saying that the concept of one customary rule serving to determine the validity of different customary guidelines is in absent-minded conformity to the concept all laws originate in legislation.
This had the pleased consequence that, in its up to date utility, the universality of the Pure Principle (and Kelsen insisted that solely universal truths might be ‘scientific’) would coincide with that of predominantly global law. While the classical naturalist appears dedicated to the claim that the law necessarily incorporates all moral ideas, this claim doesn’t suggest that the regulation is exhausted by the set of moral ideas.
God’s commands, however, would only have normative validity for those who presuppose the fundamental norm of their respective faith, particularly, that one ought to obey God’s commands. Stanley L. Paulson and Bonnie Litschewski Paulson (eds), Normativity and Norms: Essential Views on Kelsenian Themes, Oxford 1998.
5 Science was generally the domain of the causal understanding of epistemological data and its main logical and causally oriented technique was to be distinguished from the normative reasoning as was to be discovered within the Pure Theory of Law.
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