Good econometrics is like good carpentry—it's all about using the right tool for the job.
应该做官就做官，应该辞职就辞职，应该继续干就继续干，应该马上走就马上走。
"I don't think of my work as being for children or for adults. I just think of it as being."
她不仅仅是我的妈妈，她还是她自己。
Every piece of plastic we produce should have a clear path to reuse or recycling.
领导力就是今天做出艰难的决定，为更美好的明天铺路。
Memory is a treacherous thing, it changes and distorts over time.