鱼和客人，三日发臭。

The challenge in theoretical computer science is not just to solve problems, but to understand the nature of problem-solving itself.

我喜欢用我的音乐创造一个世界。

儿童不仅在心理上是被动的，而且像一个空花瓶，是一个有待于充满及塑造的生命。