每个人都有不为世人所知的秘密悲伤；我们常常称一个人冷漠，其实他只是悲伤。

我其实没有工作室。我在人们的阁楼、田野、地下室到处游荡，任何吸引我的地方。

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。

爱意味着向消极和积极同时敞开自己——向悲伤、痛苦和失望敞开，也向快乐、满足和我们此前未知的意识强度敞开。

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.