just empirically speaking about the Harvard students, looking the trends and statistics-- empirically speaking, Americans are the most generous people in the world.

或只是说哈佛学生，根据发展趋势和统计，美国人是世界上最慷慨的人。

哈佛公开课 - 幸福课课程节选

This is wonderful to see,wonderful to be here, whether it's Harvard,whether it's America-- a real privilege.

能来到这里是件美好的事，无论是在哈佛，还是在美国，真的很荣幸。

哈佛公开课 - 幸福课课程节选