Shirley Jackson said this quote
“ Far and away the greatest menace to the writer—any writer, beginning or otherwise—is the reader. The reader is, after all, a kind of silent partner in this whole business of writing, and a work of fiction is surely incomplete if it is never read. The reader is, in fact, the writer's only unrelenting, genuine enemy. He has everything on his side; all he has to do, after all, is shut his eyes, and any work of fiction becomes meaningless. Moreover, a reader has an advantage over a beginning writer in not being a beginning reader; before he takes up a story to read it, he can be presumed to have read everything from Shakespeare to Jack Kerouac. No matter whether he reads a story in manuscript as a great personal favor, or opens a magazine, or—kindest of all—goes into a bookstore and pays good money for a book, he is still an enemy to be defeated with any kind of dirty fighting that comes to the writer's mind. ”