Philo Judaeus De Sacrificiis Abelis Et Caini 78

[78] It is advantageous, therefore, if not with reference to the acquisition of perfect virtue, still at all events with reference to political considerations, both to be nourished in ancient and primeval opinions, and also to be acquainted with the ancient records of glorious actions, which historians and the whole race of poets have delivered to their contemporaries and to subsequent ages, to be preserved in their recollection. But when the sudden light of self-taught wisdom has shone upon those who had no foreknowledge or expectation of it, and opening the previously closed eyes of the soul, makes men spectators of knowledge instead of being merely hearers of it, implanting in the mind the swiftest of the outward senses, sight, instead of hearing, which is slower; it is then in vain to exercise the ears with speeches.