一滴墨水，可以唤起千百万人的思想。

I'm not afraid to fall, because I know I'll get back up.

强调用户至上的经营理念。

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.

"Writing is a way of living, a way of existing, a way of being in the world."

科学的美丽在于它不断发展和挑战我们对世界的理解的能力。