"There are moments when the past feels so close you could reach out and touch it, and then it’s gone again, like smoke."
有些时候,过去感觉如此之近,仿佛伸手就能触碰,然后它又消失了,像烟一样。
我们知道世界将不再相同。少数人笑了,少数人哭了,大多数人沉默不语。
The real challenge in computer science is not to write programs, but to understand the nature of computation.
The Lisp language is designed to be extensible, and it is easy to add new features to it.