If a novelist is going to affirm anything, he must be prepared to prove his case in close detail, reconcile it with hard facts, and he must even be prepared for the humiliation of discovering that he may have to affirm something different. The facts are stubborn and refractory and the art of the novel itself has a tendency to oppose the conscious or ideological purposes of the writer, occasionally ruining the most constructive intentions. But then, constructive intentions also ruin novels.

