商业中最危险的一句话是"我们一直都是这样做的"。
The most dangerous phrase in business is "We've always done it this way."
A mathematician's work is never done; there are always new questions to ask and new mysteries to solve.
做伟大工作的唯一方法就是热爱你所做的事情。如果你还没有找到它，继续寻找。不要满足。
The proof of a system's value is its existence.