The most glorious moments in your life are not the so-called days of success, but rather those days when out of dejection and despair you feel rise in you a challenge to life, and the promise of future accomplishment.

You are never too old to set another goal or to dream a new dream.

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

你的时间有限，所以不要浪费在过别人的生活上。

I'm not a role model, I'm just a kid who's trying to figure it out.