我们都身处阴沟，但仍有人仰望星空。

出自先秦《荀子·非相》。赠人以有益之言，比赠人以金石珠玉更显珍贵。说明有益的建言对他人事业人生的助益作用。

When a thing is funny, search it for a hidden truth.

The city is a school, and its buildings are the teachers.

舞蹈、鼓掌、兴奋、欢叫、跳跃、飘飘荡荡、滚滚向前。

真相是一面镜子，反映出我们真正的样子。

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.