Whether Isidore's division of human laws is appropriate?

Objections

Objection 1 : It would seem that Isidore wrongly divided human statutes or human law (Etym. v, 4, seqq.). For under this law he includes the "law of nations," so called, because, as he says, "nearly all nations use it." But as he says, "natural law is that which is common to all nations." Therefore the law of nations is not contained under positive human law, but rather under natural law.
Objection 2 : Further, those laws which have the same force, seem to differ not formally but only materially. But "statutes, decrees of the commonalty, senatorial decrees," and the like which he mentions (Etym. v, 9), all have the same force. Therefore they do not differ, except materially. But art takes no notice of such a distinction: since it may go on to infinity. Therefore this division of human laws is not appropriate.
Objection 3 : Further, just as, in the state, there are princes, priests and soldiers, so are there other human offices. Therefore it seems that, as this division includes "military law," and "public law," referring to priests and magistrates; so also it should include other laws pertaining to other offices of the state.
Objection 4 : Further, those things that are accidental should be passed over. But it is accidental to law that it be framed by this or that man. Therefore it is unreasonable to divide laws according to the names of lawgivers, so that one be called the "Cornelian" law, another the "Falcidian" law, etc.