The most important property of a program is whether it accomplishes the intention of its user.

定义就是限制。

The only learning which significantly influences behavior is self-discovered, self-appropriated learning.

艺术不是关于答案，而是关于问题。

Understanding inequality requires looking beyond averages.

The dead are not lost. They are just out of sight.

质量就是在无人注视时依然把事情做对。