President Bush got a lesson from a group of recent high school graduates. They were Presidential Scholars, a program designed "to recognize and provide leadership development experiences for some of America's most outstanding graduating high school seniors." The 141 Presidential Scholars were being honored at the White House. One of them, Mari Oye, from Wellesley, Mass., describes what happened: "The president walked in and gave us a short speech, saying that as we went on into our careers, it was important to treat others as we would like to be treated. And he told us that we would have to...