“Few rites of spring are quite as delightful as the opening, each May, of the sculpture garden atop the Metropolitan Museum of Art. This year the honor goes to the late Roy Lichtenstein. One of the prime movers of Pop Art, Lichtenstein was not exactly a bad sculptor, but he certainly wasn’t a good one, either. And yet, such is the magic of the sculpture garden that absolutely anything you put up there will look good.”