It is not the strongest of the species that survives, nor the most intelligent, but the one most responsive to change.  
最艰难的决定往往带来最大的回报。
以前的事不要再评说了,做完的事不要再议论了,过去了就不要再追咎。
君子不以水为镜,而以人为镜。以水为镜,只能看到面容;以人为镜,可以知道吉凶。
The most important thing is to be passionate about what you do.
The intersection of mathematics and computer science is where some of the most exciting discoveries are made.