"...he may be said to have heckled himself for hundreds of pages.".

Now the Schoolman always had two ideas in his head; if they were only the Yes and No of his own proposition. The Schoolman was not only the schoolmaster but also the schoolboy; he examined himself; he cross-examined himself; he may be said to have heckled himself for hundreds of pages. Nobody can read St. Thomas's theology without hearing all the arguments against St. Thomas's theology. Therefore, even when that sort of faith produced what many would call ferocity, it always produced what I mean here by fairness; the almost involuntary intellectual fairness of one who cannot help knowing that the universe is a many-sided thing. That is precisely the temper of Chaucer; and that is what I mean when I say that he got his broad-mindedness from his theology; though it was not what is now generally meant by a broad theology. The essential point is that it was not a simple theology.

-Chaucer (1932)