一个好计划的最大敌人是完美计划的梦想。

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.

The development of the drone industry is ultimately to serve humans, not to replace them.

The mind is a complex of processes, not a thing.

渔业的未来取决于平衡——经济需求和生态限制之间的平衡。