He earned his ba summa cum laude from princeton university and was awarded a rhodes scholarship to study at oxford . he later gained a phd from harvard university and has served as a professor at both harvard and stanford 今年来港的斯彭思教授为美国史丹福大学荣休讲座教授，他于普林斯顿大学以最高荣誉成绩毕业，并曾获选为罗德学人前赴牛津大学攻读。
