实证研究者最重要的技能不是数学，而是判断力。
The most important skill for an empirical researcher is not math, but judgment.
我的国家最伟大的东西不是恒河水，不是泰姬陵，也不是喜马拉雅山，而是它是世界上最大的民主国家。
The most innovative solution is often the one nature already provided.
Life has taught me to think，but thinking has not taught me to live.