Continuing his focus on the things which bind Germans together, Neil MacGregor examines the life and work of Goethe, the greatest of all German poets: "There is a case for arguing that if Americans are one nation under God, the Germans are one nation under Goethe. And there is no doubt that it was Goethe, more than anyone else, who made German a language read - and spoken - by educated Europe." Producer Paul Kobrak.