24. For, although I took no trouble to learn what he said, but only to hear how he said it--for this empty concern remained foremost with me as long as I despaired of finding a clear path from man to thee--yet, along with the eloquence I prized, there also came into my mind the ideas which I ignored; for I could not separate them. And, while I opened my heart to acknowledge how skillfully he spoke, there also came an awareness of how truly he spoke--but only gradually. First of all, his ideas had already begun to appear to me defensible; and the Catholic faith, for which I supposed that nothing could be said against the onslaught of the Manicheans, I now realized could be maintained without presumption. This was especially clear after I had heard one or two parts of the Old Testament explained allegorically--whereas before this, when I had interpreted them literally, they had "killed" me spiritually.(see note 148) However, when many of these passages in those books were expounded to me thus, I came to blame my own despair for having believed that no reply could be given to those who hated and scoffed at the Law and the Prophets. Yet I did not see that this was reason enough to follow the Catholic way, just because it had learned advocates who could answer objections adequately and without absurdity. Nor could I see that what I had held to heretofore should now be condemned, because both sides were equally defensible. For that way did not appear to me yet vanquished; but neither did it seem yet victorious.
25. But now I earnestly bent my mind to require if there was possible any way to prove the Manicheans guilty of falsehood. If I could have conceived of a spiritual substance, all their strongholds would have collapsed and been cast out of my mind. But I could not. Still, concerning the body of this world, nature as a whole--now that I was able to consider and compare such things more and more--I now decided that the majority of the philosophers held the more probable views. So, in what I thought was the method of the Academics--doubting everything and fluctuating between all the options--I came to the conclusion that the Manicheans were to be abandoned. For I judged, even in that period of doubt, that I could not remain in a sect to which I preferred some of the philosophers. But I refused to commit the cure of my fainting soul to the philosophers, because they were without the saving name of Christ. I resolved, therefore, to become a catechumen in the Catholic Church--which my parents had so much urged upon me--until something certain shone forth by which I might guide my course.