This explanation is reprised by Plato, then Aristotle in Politics, where he develops the concept of "natural slavery": "for he that can foresee with his mind is naturally ruler and naturally master, and he that can do these things with his body is subject and naturally a slave."
To objašnjenje ponavlja i Platon, a potom i Aristotel u Politici, gdje razvija koncept "prirodnog ropstva": "jer onaj koji u svom umu ima sposobnost predviđanja po prirodi je gospodar, a onaj koji te stvari može raditi svojim tijelom podložan je i po prirodi je rob".