Never forget what you are, for surely the world will not. Make it your strength. Then it can never be your weakness. Armor yourself in it, and it will never be used to hurt you. 

技术只是工具，人才是真正的资产。

在钢铁中，就像在生活中一样，韧性决定了你能走多远。

We teach a subject not to produce little living libraries on that subject, but rather to get a student to think mathematically for himself.

算法的美不在于它们的复杂性，而在于它们高效解决问题的能力。