The story of Kemal, the half-hearted industrialist who is the hero of The Museum of Innocence, Orhan Pamuk's first novel since he won the Nobel Prize for Literature, is a deeply private one, built around an often inexplicable obsession that he attempts to justify to the reader. In honor of Füsun, the poor, beautiful cousin he had a short affair with when he was 30 and engaged to another, he has...