The beauty of mathematics only shows itself to more patient followers.

In a world filled with hate, we must still dare to hope. In a world filled with anger, we must still dare to comfort. In a world filled with despair, we must still dare to dream. And in a world filled with distrust, we must still dare to believe.

程序测试可以用来显示错误的存在，但绝不能显示它们的不存在！

我们必须接受事物的本来面目，但我们应该努力使它们按照我们希望的方式到来。

不管你是朋友还是敌人，我还是会做我自己。