郦波在讲座中引用马克·吐温的话并加以阐释
"Cinema is the art of making the invisible visible."
The P versus NP problem is one of the most important problems in computer science.
一个人可以选择退回安全地带或迈向成长。成长必须一次又一次地选择;恐惧必须一次又一次地克服。