学习数学的唯一方法就是做数学。
如果你开心得太久，就会变得平庸。
"The key to great acting is listening. It's not just about saying your lines, it's about hearing what the other person is saying."
A good system design is one that makes it easy to do the right thing and hard to do the wrong thing.
一个好的系统设计是使做正确的事情变得容易，做错误的事情变得困难。
我们都只是路过，像雪地上的脚印一样留下自己的痕迹。