I come here today...not just because you are doing well and because you are outstanding students, but because we expect something of you. And unless in this free country of ours we are able to demonstrate that we are able to make this society work and progress, unless we can hope that from you we are going to get back all of the talents which society has helped develop in you, then, quite obviously, all the hopes of all of us that freedom will not only endure but prevail, of course, will be disappointed. So we ask the best of you...I congratulate you on what you have done, and most of all I congratulate you on what you are going to do.