I've been waiting more than 30 years to say this: "Dad, I always told you I'd come back and get my degree." I want to thank Harvard for this timely honor. I'll be changing my job next year…and it will be nice to finally have a college degree on my resume.
能源独立能增强经济实力并提升国家安全。
Greatness is not about being the best. It's about being better than you were before.
如果你没有失败，说明你不够努力。
A mathematician is a person who can find analogies between theorems; a better mathematician is one who can see analogies between theories and the best mathematician can notice analogies between analogies.