The only impossible journey is the one you never begin.
唯一不可能的旅程是你从未开始的旅程。
The value of a thought is in its consequences for behavior.
成功的真正标准不是财富，而是你对他人产生的影响。
To teach mathematics is to inspire the next generation of thinkers and problem solvers.
活得足够长以超越你可能获得的任何怨恨感是值得的。