The more you give, the more you receive.
Good econometrics is like good carpentry—it's all about using the right tool for the job.
有时候我开始说一句话,甚至不知道会说到哪里。我只是希望能在过程中找到答案。
保全你的身形,养护你的生命,不要思虑重重、汲汲营营。
The only thing we have to fear is fear itself.