The past is never dead. It's not even past.
幸福不是现成的东西。它来自你自己的行动。
并不是我很聪明,而只是我和问题相处得比较久一点。
When you need to innovate, you need collaboration.
在数学中,你不理解事物。你只是习惯了它们。
Success is not the result of spontaneous combustion. You must set yourself on fire.