伯恩斯在华盛顿大学圣路易斯分校2015毕业典礼上的演讲
Chancellor Wrighton, members of the Board of Trustees and the Administration, distinguished faculty, Class of 1965, hard-working staff, my fellow honorees, proud and relieved parents, calm and serene grandparents, distracted but secretly pleased siblings, ladies and gentlemen, boys and girls, graduating students, good morning. I am deeply honored that you have asked me here ...