“My job is to lay my hands on that piece of writing and make it . . . better. Cleaner. Clearer. More efficient. Not to rewrite it, not to bully and flatten it into some notion of Correct Prose, whatever that may be, but to burnish and polish it and make it the best possible version of itself that it can be—to make it read even more like itself than it did when I got to work on it.”