“Whenever he saw his books in a store, he felt like he’d gotten away with something, said John Updike. Who also expressed the opinion that a nice person wouldn’t become a writer. The problem of self-doubt. The problem of shame. The problem of self-loathing. You once put it like this: When I get so fed up with something I’m writing that I decide to quit, and then, later, I find myself irresistibly drawn back to it, I always think: Like a dog to its vomit.”