"The difference between correlation and causation is fundamental in empirical work."
相关性和因果关系之间的区别在实证工作中是根本性的。
阅读未见过的书,如结识好朋友,情意和洽;重读已看过的书,如老朋友相晤,叙旧联谊。
言语就像风。
Profitability and responsibility must go hand in hand, or neither will last.
那双曾经属于我的珍贵的手。
The past beats inside me like a second heart.
当没有人相信你时,你必须相信自己。