计算理论为理解什么可以计算、什么不能计算提供了基础。
The theory of computation provides a foundation for understanding what can and cannot be computed.
No great artist ever sees things as they really are. If he did he would cease to be an artist.
I don’t want to be a star. I want to be a human.
Pain is inevitable. Suffering is optional.
数学不是一项观赏性运动。