Program testing can be used to show the presence of bugs, but never to show their absence!

To solve a mathematical problem is to uncover a piece of the universal puzzle.

Whatever you're meant to do, do it now. The conditions are always impossible.

责任感就是对自己责任的热爱。

最重要的是对自己诚实，对所做之事诚实。

I always tell people, if you want to be successful, find someone who has achieved the results you want and copy what they do and you'll achieve the same results.