You have to spend some energy and effort to see the beauty of math.

Claiming your 20s is one of the simplest, yet most transformative, things you can do for work, for love, for your happiness, maybe even for the world.

从挫折中获得智慧、变得坚强，意味着你比以往任何时候都更有能力生存。只有在逆境来临的时候，你才会真正认识你自己，了解身边的人。这种了解是真正的财富，虽然是用痛苦换来的，但比我以前得到的任何资格证书都有用。