我们都受社会契约的约束，须遵守法律，但我们也有权参与制定这些法律。

天才…意味着不仅仅是以一种不同寻常的方式来感知的能力。

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.

所有严肃的艺术都试图理解这个世界。

对知识的投资总是能带来最大的利益。学习是好学的人，财富是细心的人。如果一个人把钱包倒进他的头里，没有人能把它从他身边夺走。