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.

压力造就钻石。

一家公司的遗产是由其对世界的贡献来定义的。

The teacher's task is to awaken joy in creative expression and knowledge.

The only limit is the one you set for yourself.

生活不是如何在风暴中生存，而是如何在雨中起舞。