It is then, according to Grotius, doubtful whether the human race belongs to a hundred men, or that hundred men to the human race: and, throughout his book, he seems to incline to the former alternative, which is also the view of Hobbes. On this showing, the human species is divided into so many herds of cattle, each with its ruler, who keeps guard over them for the purpose of devouring them.

As a shepherd is of a nature superior to that of his flock, the shepherds of men, i.e. their rulers, are of a nature superior to that of the peoples under them. Thus, Philo tells us, the Emperor Caligula reasoned, concluding equally well either that kings were gods, or that men were beasts.

The reasoning of Caligula agrees with that of Hobbes and Grotius. Aristotle, before any of them, had said that men are by no means equal naturally, but that some are born for slavery, and others for dominion.