My slumbers--if I slumber--are not sleep, But a continuance of enduring thought, Which then I can resist not: in my heart There is a vigil, and these eyes but close To look within; and yet I live, and bear The aspect and the form of breathing men.
Lord ByronSo do the dark in soul expire, Or live like scorpion girt by fire; So writhes the mind remorse hath riven, Unfit for earth, undoom'd for heaven, Darkness above, despair beneath, Around it flame, within it death.
Lord Byron