For centuries, a central goal of art has been to make us see the world with new eyes. Thinkers from Edmund Burke to Elaine Scarry have understood this effort as the attempt to create new forms. But as anyone who has ever worn out a song by repeated listening knows, artistic form is hardly immune to sensation-killing habit. Some of our most ambitious writers--Keats, Proust, Nabokov, Ashbery--have been obsessed by this problem. Attempting to create...