Those who do not have power over the story that dominates their lives, the power to retell it, rethink it, deconstruct it, joke about it, and change it as they change, truly are powerless, because they cannot think new thoughts.

Rigor in proof is what separates mathematics from all other sciences.

无论什么年龄，人心只会向同样敞开的心敞开。

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.