计算安全不仅仅是建立防护墙，而是要理解威胁的全貌。

数学的进步是通过概括实现的。

当没有人相信你的时候，你必须相信自己

The only thing worse than training employees and losing them is not training them and keeping them.

程序最重要的属性是它是否实现了用户的意图。

I think the target of anything in life is to be happy.

不要为未来担忧，不要为过去哭泣。