2. For whereas the Egyptians were formerly addicted to different customs, and despised one
another's sacred and accustomed rites, and were very angry one with another on that account, Abram
conferred with each of them, and, confuting the reasonings they made use of, every one for their own
practices, demonstrated that such reasonings were vain and void of truth: whereupon he was admired
by them in those conferences as a very wise man, and one of great sagacity, when he discoursed on any
subject he undertook; and this not only in understanding it, but in persuading other men also to assent
to him. He communicated to them arithmetic, and delivered to them the science of astronomy; for
before Abram came into Egypt they were unacquainted with those parts of learning; for that science
came from the Chaldeans into Egypt, and from thence to the Greeks also.