'uncertainty of the narrator'

"In reality, we are stuck with third- and first-person narration. The common idea is that there is a contrast between reliable narration (third-person omniscience) and unreliable narration (the unreliable first-person narrator, who knows less about himself than the reader eventually does). On one side, Tolstoy, say; and on the other, Humbert Humbert or Italo Svevo's narrator, Zeno Cosini, or Bertie Wooster. Authorial omniscience, people assume, has had its day, much as that "vast, moth-eaten musical brocade" called religion has also had its. W. G. Sebald once said to me, "I think that fiction writing which does not acknowledge the uncertainty of the narrator himself is a form of imposture which I find very, very difficult to take. Any form of authorial writing where the narrator sets himself up as stagehand and director and judge and executor in a text, I find somehow unacceptable. I cannot bear to read books of this kind." Sebald continued: "If you refer to Jane Austen, you refer to a world where there were set standards of propriety which were accepted by everyone. Given that you have a world where the rules are clear and where one knows where trespassing begins, then I think it is legitimate, within that context, to be a narrator who knows what the rules are and who knows the answers to certain questions. But I think these certainties have been taken from us by the course of history, and that we do have to acknowledge our own sense of ignorance and of insufficiency in these matters and therefore to try and write accordingly."

em How Fiction Works, de James Wood.