sentences:  In Perpignan he made the acquaintance of several scholars, among them Moses Narboni and David Bongoron.Mosconi was well versed in philosophical works, both Hebrew and Arabic; but, having a predilection for metaphysics, he occupied himself particularly with Ibn Ezra's commentary on the Pentateuch, on which he wrote a supercommentary.Most of the 30 supercommentaries on Ibn Ezra which Mosconi examined during his wanderings were, in his opinion, worthless.