The most profound truths are often the ones we deny.

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.

心理学是科学，教学是艺术；科学永远不会直接从自身产生艺术。

我们写的每一个方程都是理解宇宙的一小步，但旅程是无限的。

“在科学中，重要的不是获得新的事实，而是发现思考它们的新方法。”

Collaboration across industries is key to solving the world's energy challenges.

我喜欢一切没有风格的东西：字典、照片、自然、我自己和我的画。

名声不是凭空产生的，赞誉也不会自己增长，只有成就了功业，名声才会到来。