Gregorij de Valentia oratio,

in such a variety of arguments on every side, they are in no way able to judge and perceive the truth of the doctrine of faith by itself, from itself. "The Sectarii sectarians say: "They ought to believe us rather than the Papist original: "Papisticis" teachers, and persuade themselves that we have been stirred up by God to purge the doctrine of faith." For what reason? "Because we teach nothing in any controversial question of faith today except the truth of the holy Scripture." But the greatest part of men (which must be repeated by me often) cannot judge and discern the truth of the doctrine itself in controversial questions. For how can you form a judgment regarding the truth of doctrine with sufficient prudence in so many controversies of faith, unless, with the foundations of the truth itself thoroughly understood, and with the vanity of the contrary arguments also perceived, you have known how the most salutary faith (to speak with the divine Augustine) is defended, and the sacrosanct truth itself stands unmoved against all errors? And yet, with this science (says the same Augustine most truly), the majority of the faithful do not possess, although they possess the faith itself in the highest degree. "For it is one thing," he says, "to know only what a man ought to believe for the sake of obtaining Lib. 14. de Trinit. cap. 1. In the cited place.