O: There's a line of Saul Bellow's—“I write to discover the next room of my fate.” In this way, I think, many novels are self-portraits—or future self-portraits, self-explorations, even if the story is set in an alien situation. You can try on this costume, that costume.

M: Somebody once asked W. H. Auden, “Is it true that you can write only what you know?”And he said,“Yes it is. But you don't know what you know until you write it.” Writing is a process of discovery of what you really do know. You can't limit yourself in advance to what you know, because you don't know everything you know.