The structure of the international system forces states to behave in certain ways, regardless of their internal characteristics.

I write to understand as much as to be understood.

中国学校的早自习

我们必须设计本质上是恢复性和再生性的系统。

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.