[3] Accordingly in a short time he became perfectly acquainted with the affairs of Egypt, and they are of a very various and diversified character, so that they are not easily comprehended even by those who from their earliest infancy have made them their study. The scribes were a superfluous body when he had made such advances towards the knowledge of all things, whether important or trivial, by his extended experience, that he not only surpassed them, but from his great accuracy was qualified instead of a pupil to become the instructor of those who had hitherto been the teachers of all other persons.