Former Presidents and political rivals Gerald Ford and Jimmy Carter visit with Tim Russert at the LBJ Library. Ford had this to say: "One of the best pieces of advice that I ever received came from a great Texas Speaker of the House. Shortly after I was sworn in, in 1949, Sam Rayburn got together all the new members of the House and gave them a lecture, which was a tradition that he followed. And one of the things he said was, 'Learn to disagree without being disagreeable.' I've remembered that from the very beginning. That was always the guidepost for Sam Rayburn. That was good advice then. It would be excellent advice, I think, today."