怪小人之颠倒是非，不知惯颠倒方为小人；惜君子之受世折磨，不知惟折磨乃见君子。
责怪小人为颠倒豪杰之士，而不知只有颠倒的人才是小人。可怜君子受世事折磨，而不知只有在折磨之中才能见到君子。
最困难的挑战往往带来最大的转型机会。
互联网的未来是数据驱动的时代。
We teach a subject not to produce little living libraries on that subject, but rather to get a student to think mathematically for himself.
The power elite are not solitary rulers. Advisors and consultants, spokesmen and opinion-makers, are often the captains of their higher thought and decision.