Jacki Lyden speaks with Francine Prose, author of The Lives of the Muses: Nine Women & the Artists They Inspired. Men of great genius like Samuel Johnson, Dante Rossetti, Freidrich Nietzsche and George Balanchine carried on passionate and often bizarre affairs with women of great distinction. Their relationships led the men to great heights. But it was not always the same for the women who fueled their creative powers. Ms. Prose tells some of their stories.