领导的艺术在于说不，而不是说是。说是很容易的。
The art of leadership is saying no, not saying yes. It is very easy to say yes.
量子力学不仅仅是一个理论，它是一个从根本上改变了我们对现实理解的框架。
The power of words can change a life.
Writing is a way of preserving memory.
The interplay between discrete mathematics and computer science has been a fertile ground for innovation and discovery.
尽力而不能达到的，圣人不会苛责于人。应当尽心而未尽心，圣人不会推御责任。