The theory of computation is not just about solving problems, but also about understanding the limits of what can be computed.

Not for the sake of our health, though it's often presented that way, but because it's an escape from the human anthill. It's an escape from our own competition, and our own dramas. And that's why ween joy looking at glaciers and oceans, and contemplating the Earth from outside its perimeters, etc. We like to feel in contact with something that is non-human, and that is so deeply important to us.

人们在遇到别人蛮横无理的时候，往往怒火中烧，可是忽然转眼一想自己也有过错，不知不觉怒气就消失得干干净净。由此看来孟子所强调的自我反省，实在是息事宁人、涵养正气、受益获福、求得身心快乐的最好办法，千万不要当作一般道学家的套话来看待。

永远不要拆除，永远不要移除或替换，总是添加、改造和再利用！