There's a Mr. Hyde for every happy Jekyll face, a dark face on the other side of the mirror. The brain behind that face never heard of razors, prayers, or the logic of the universe. You turn the mirror sideways and see your face reflected with a sinister left-hand twist, half mad and half sane.
Stephen KingWhen your story is ready for rewrite, cut it to the bone. Get rid of every ounce of excess fat. This is going to hurt; revising a story down to the bare essentials is always a little like murdering children, but it must be done.
Stephen KingThere's something in us that is very much attracted to madness. Everyone who looks off the edge of a tall building has felt at least a faint, morbid urge to jump. And anyone who has ever put a loaded pistol up to his head... All right, my point is this: even the most well-adjusted person is holding onto his or her sanity by a greased rope. I really believe that. The rationality circuits are shoddily built into the human animal.
Stephen King