In the greatest fiction, the writer's moral sense coincides with his dramatic sense, and I see no way for it to do this unless his moral judgement is part of the very act of seeing, and he is free to use it. I have heard it said that belief in Christian dogma is a hindrance to the writer, but I myself have found nothing further from the truth. Actually, it frees the storyteller to observe. It is not a set of rules which fixes what he sees in the world. It affects his writing primarily by guaranteeing his respect for mystery.
Flannery O'ConnorIt's always wrong of course to say that you can't do this or you can't do that in fiction. You can do anything you can get away with, but nobody has ever gotten away with much.
Flannery O'Connor