这个世界充满了征兆和奇迹，但我们每天走过却视而不见。
"The world is full of signs and wonders, but we walk past them every day without seeing."
I’m a very positive thinker, and I think that is what helps me the most in difficult moments.
Quality is not a accident; it is a decision.
金钱和成功不会改变人，它们只会放大已有的本性。
In mathematics, the art of proposing a question must be held of higher value than solving it.
缓慢的程度与记忆的强度成正比；速度的程度与遗忘的强度成正比。