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.

大爆炸不是一切的开始，而是我们可观测宇宙的开始。

自由的土地上，人人都是国王。

时间是一位伟大的老师，但不幸的是它杀死了所有的学生。

我不是为评论家制作音乐。我为粉丝制作音乐。

可持续性不仅仅是一个流行词，而是我们对后代的责任。

I'm the reason your daughter's so obsessed.

科学中最重要的不是获得新的事实，而是发现思考它们的新方法。

The companies that will thrive are those that see environmental challenges as design opportunities.

领导力就是做出今天艰难的决定，造福下一代。