Every problem in mathematics is an opportunity to learn something new.
我们都来自同一块基因布料,而这块布料是在非洲编织的。
Life is too short to be anything but happy.
Start where you are, with what you have. Make something of it and never be satisfied.
最好的故事是那些与人类经验产生共鸣的故事。
We don't inherit the land from our ancestors; we borrow it from our children.