Security is always excessive until it's not enough.

The line between good and evil is permeable and anyone can cross it.

The more you know, the less you need.

抽象的目的不是模糊，而是创建一个新的语义层次，在这个层次上可以绝对精确。

The beauty of computer science lies in its ability to model and solve real-world problems.

一个人知道自己为什么而活，就可以忍受任何一种生活。