你唯一的限制就是你相信的限制。
The only limits you have are the limits you believe.
解释：只要心胸坦荡，不必顾虑没有施展抱负的地方。
Anything you say before the word “but” does not count.
A building should not shout; it should whisper to the people who use it.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。
不自律的人是没有自由的。
恐惧是人类如此强大的情感，以至于当我们允许它控制我们时，它会驱赶我们心中的同情。
Mathematics is not a spectator sport. You have to get involved.