一本书是一扇门，每个读者都以不同的方式穿过它。
"A book is a door, and every reader walks through it differently."
合作是解决我们行业中复杂挑战的关键。
Sometimes the only way to survive is to become someone else.
The best way to learn econometrics is by doing—working with real data and real problems.
The poet must purify the words of the tribe.