 Secondly, scepticism about obligation does not entail scepticism about legitimacy: one may affirm that law is entitled to coerce while denying that all of law’s subjects have a duty to obey it (see Green 1988; Simmons 1979; Edmundson 1998). Scepticism about the possibility of legitimate government leads to anarchism of the ordinary sort; scepticism about political obligation leads only to what is called “philosophical anarchism”: the denial that law has all the authority it claims for itself.