"The past is always with us, but it doesn't have to define our future."

世界是一个残酷的地方，艺术是它的复仇。

The writer’s duty is to rebel, to resist, to never be complacent.

The only way to understand a character is to understand their contradictions.

系外行星的发现为我们打开了探索宇宙的新窗口，让我们能够探索太阳系之外的世界。

爱不是原因，而是结果。

世界充满了简单、明显而美丽的事物，以至于人们竟然还会去发明任何东西，这真是令人惊奇。

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.