War and Peace is a literary work mixed with chapters on history and philosophy by the Russian author Leo Tolstoy. It was first published serially, then published in its entirety in 1869. It is regarded as one of Tolstoy's finest literary achievements and remains an internationally praised classic of world literature. Book 15: 1812-13: 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.