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.

基础设施的未来在于可持续性和智能技术。

我不需要理由去自信。

不好的事情总是发生得很快，而几乎所有好事都发生得很慢。

Diversity in science leads to better solutions.