阅读是不动而旅行；写作是旅行而不动。

I would like to fly in space.Absolutely.That would be cool.I used to just do personally risky things， but now I’ve got kids and responsibilities， so I can’t be my own test pilot.That wouldn’t be a good idea.But I definitely want to fly as soon as it’s a sensible thing to do.

In computing, invariants are ephemeral.

Lisp is worth learning for the profound enlightenment experience you will have when you finally get it; that experience will make you a better programmer for the rest of your days, even if you never actually use Lisp itself a lot.

我不是画我所见，而是画我所理解。

权力不仅仅是你自己能做什么，而是你能让别人做什么。