One of Keats' finest sonnets begins: "Much have I traveled," yet Keats traveled very little, only to Italy where he died. Shelley, also an introspective and intellectual, dabbled in politics, often with a comic effect and although he could not swim, he was devoted to sailing. Wordsworth marched to France, praising the Revolution, which he later regretted. Coleridge wandered to Germany and German metaphysics. Later he created the Ancient Mariner...