生活是10%发生在你身上的事,90%是你如何应对。
The concept of NP-completeness has provided a powerful tool for understanding the complexity of problems.
The past is never dead. It's not even past.
不必太纠结于当下,也不必太忧虑未来,当你经历过一些事情的时候,眼前的风景已经和从前不一样了。