 A central—perhaps the central—question of the philosophy of law concerns the relationship between law and morality. The concern breaks down into many issues, both conceptual and evaluative. Among the evaluative issues is the question of obedience to law: does the fact that some norm is a legal norm provide any reason to obey it? (Green 2004 [2012]; Delmas &amp; Brownlee 2021). By contrast, conceptual or analytical issues include the identification of conditions necessary for the existence of a legal system, irrespective of the system’s goodness or otherwise. Must some reference to morality enter into an adequate definition of law or legal system? (Hart 1963 [1982]; Dickson 2012). And so on.