Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country.
A journey is a person in itself; no two are alike. And all plans, safeguards, policing, and coercion are fruitless. We find after years of struggle that we do not take a trip; a trip takes us.
过去是一个异国他乡;那里的人做事方式不同。
Data-driven research can challenge long-held economic assumptions.