物理是思想的框架……追索到事情的本质，再从那里思考下去。

Here's where it makes the most sense. You need it so you don't forget. Forget that there are palace in the world that aren't made out of stone That there's a---there's a---there's something inside that's yours, that they can't touch.

在计算的世界里，复杂性不是敌人，而是需要理解和掌握的挑战。