[82] When, therefore, Jacob, the practiser of virtue, and the man who entered into the lists of, and was a candidate for, the prizes of virtue, was inclined to give his ears in exchange for his eyes, and words for actions, and improvements for perfection, as the bounteous God was willing to give eyes to his mind, in order that he might for the future clearly see what hitherto he had only comprehended by hearing (for the eyes are more trustworthy than the ears), the oracle sounded in his ears, "Thy name shall not be called Jacob; but Israel shall thy name be, because thou hast prevailed with God and with men, with power." [37] Jacob then is the name of learning and of improvement, that is to say of those powers which depend upon learning, and Israel is the name of perfection, for the name being interpreted means "the sight of God;"