If Harvard University President Lawrence H. Summers was worried about how the undergraduates would greet him Wednesday night at his first scheduled event since announcing his resignation, those fears quickly were put to rest. He got a standing ovation after he walked in. He got a standing ovation before he left. A row of students with red letters painted on their chests spelled out "Larry." Sarah Bahan, 22, was wistful as she left the meeting. She had kind words to say about Summers' emphasis on hard sciences. Mark Hoadley, 21, said Summers' monotone speaking style was balanced by a "dynamic...