对任何模型的最大期望是它能提供一个对现实有用的近似。
The house is a machine for living in.
真正的朋友是能看到你眼中痛苦的人,而其他人都只相信你脸上的笑容。
无论你多么强大,高尔夫总会找到办法让你谦卑。
Persistence is key in mathematical research; many great results come from looking at the same problem from different angles over and over again.
I'm a Martian, ain't nobody can reach me.