THE DAILY PIC: The show called “Sculpture in the Age of Donatello" opens tomorrow at the Museum of Biblical Art in New York, and Donatello's Saint John the Evangelist, from around 1412, is one of its treasures. (Many experts can't imagine why such a masterpiece has made the risky trip from Florence without any scholarly motive, but that's a story for another day – and that I happen to have already written).