Why great novels are dangerous – Julian Barnes QUOTES FOR WRITERS (and people who like quotes)
I think a great book—leaving aside other qualities such as narrative power, characterization, style, and so on—is a book that describes the world in a way that has not been done before; and that is recognized by those who read it as telling new truths—about society or the way in which emotional lives are led, or both—such truths having not been previously available, certainly not from official records or government documents, or from journalism or television. For example, even people who condemned Madame Bovary, who thought that it ought to be banned, recognized the truth of the portrait of that sort of woman, in that sort of society, which they had never encountered before in literature.
That is why the novel was so dangerous. Julian Barnes Paris Review 2000