From “A Room of One’s Own”:
The whole structure, it is obvious, thinking back on any famous novel, is one of infinite complexity, because it is thus made up of so many different judgments, of so many different kinds of emotion. The wonder is that any book so composed holds together for more than a year or two, or can possibly mean to the English reader what it means for the Russian or the Chinese. But they do hold together occasionally very remarkably. And what holds them together in these rare instances of survival (I was thinking of War and Peace) is something that one calls integrity, though it has nothing to do with paying one’s bills or behaving honorably in an emergency. What one means by integrity, in the case of the novelist, is the conviction that he gives one that this is the truth. Yes, one feels, I should never have thought that this could be so; I have never known people behaving like that. But you have convinced me that so it is, so it happens.