For after it was clear that he was ignorant of those arts in which I thought he excelled, I began to despair of his opening and solving the difficulties which perplexed me (of which indeed however ignorant, he might have held the truths of piety, had he not been a Manichee). For their books are fraught with prolix fables, of the heaven, and stars, sun, and moon, and I now no longer thought him able satisfactorily to decide what I much desired, whether, on comparison of these things with the calculations I had elsewhere read, the account given in the books of Manichaeus were preferable, or at least as good. Which when I proposed to he considered and discussed, he, so far modestly, shrunk from the burthen. For he knew that he knew not these things, and was not ashamed to confess it. For he was not one of those talking persons, many of whom I had endured, who undertook to teach me these things, and said nothing. But this man had a heart, though not right towards Thee, yet neither altogether treacherous to himself. For he was not altogether ignorant of his own ignorance, nor would he rashly be entangled in a dispute, whence he could neither retreat nor extricate himself fairly. Even for this I liked him the better. For fairer is the modesty of a candid mind, than the knowledge of those things which I desired; and such I found him, in all the more difficult and subtile questions.

My zeal for the writings of Manichaeus being thus blunted, and despairing yet more of their other teachers, seeing that in divers things which perplexed me, he, so renowned among them, had so turned out; I began to engage with him in the study of that literature, on which he also was much set (and which as rhetoric-reader I was at that time teaching young students at Carthage), and to read with him, either what himself desired to hear, or such as I judged fit for his genius. But all my efforts whereby I had purposed to advance in that sect, upon knowledge of that man, came utterly to an end; not that I detached myself from them altogether, but as one finding nothing better, I had settled to be content meanwhile with what I had in whatever way fallen upon, unless by chance something more eligible should dawn upon me. Thus, that Faustus, to so many a snare of death, had now neither willing nor witting it, begun to loosen that wherein I was taken. For Thy hands, O my God, in the secret purpose of Thy providence, did not forsake my soul; and out of my mother's heart's blood, through her tears night and day poured out, was a sacrifice offered for me unto Thee; and Thou didst deal with me by wondrous ways. Thou didst it, O my God: for the steps of a man are ordered by the Lord, and He shall dispose his way. Or how shall we obtain salvation, but from Thy hand, re-making what it made?