Art is the only way I can truly express myself.

我的心是旷野的鸟，在你的眼睛里找到了它的天空。

最好的水果来自对自然时机的尊重。

政策辩论应以严格的实证分析为基础。

To understand others, you must first understand yourself.

And I hope you will come back here to Harvard 30 years from now and reflect on what you have done with your talent and your energy. I hope you will judge yourselves not on your professional accomplishments alone, but also on how well you have addressed the world's deepest inequities…on how well you treated people a world away who have nothing in common with you but their humanity.