“When seeing a dying animal a man feels a sense of horror: substance similar to his own is perishing before his eyes. But when it is a beloved and intimate human being that is dying, besides this horror at the extinction of life there is a severance, a spiritual wound, which like a physical wound is sometimes fatal and sometimes heals, but always aches and shrinks at any external irritating touch.” – Leo Tolstoy, War and Peace (trans. Louise and Aylmer Maude)