4.17.28   And what did it profit me, that scarce twenty years old, a book of Aristotle, which they call the often Predicaments, falling into my hands (on whose very name I hung, as on something great and divine, so often as my rhetoric master of Carthage, and others, accounted learned, mouthed it with cheeks bursting with pride), I read and understood it unaided? And on my conferring with others, who said that they scarcely understood it with very able tutors, not only orally explaining it, but drawing many things in sand, they could tell me no more of it than I had learned, reading it by myself. And the book appeared to me to speak very clearly of substances, such as "man," and of their qualities, as the figure of a man, of what sort it is; and stature, how many feet high; and his relationship, whose brother he is; or where placed; or when born; or whether he stands or sits; or be shod or armed; or does, or suffers anything; and all the innumerable things which might be ranged under these nine Predicaments, of which I have given some specimens, or under that chief Predicament of Substance.