We begin with the hypothesis that any subject can be taught effectively in some intellectually honest form to any child at any stage of development.

成功不在于你赚了多少钱，而在于你对人们生活的影响。

你无法控制别人的感受，但你可以控制自己如何回应他们。

The future isn't written in the stars. There are no guarantees. So claim your adulthood. Be intentional. Get to work.

NP完全性的概念为理解问题的复杂性提供了一个强大的工具。