Good econometrics is like good carpentry—it's all about using the right tool for the job.
好的计量经济学就像好的木工——关键在于为工作使用正确的工具。
The only thing that stands between you and your dream is the will to try and the belief that it is actually possible.
以眼还眼，世界只会更盲目。
Every experiment, whether successful or not, is a step toward understanding.
——《在山西实业界学界及各党派欢迎会的演说》（1912年9月20日）
生活是10%发生在你身上的事，90%是你如何应对这些事。