一个人需要相当的知识才能意识到自己的无知程度。
It takes considerable knowledge just to realize the extent of your own ignorance.
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.
The market is always looking for the next big idea.
"To live is the rarest thing in the world. Most people exist, that is all."
世界是一本伟大的书，我们是其中的文字。
The true measure of success is not wealth, but the impact you have on others.