The reality is: sometimes you lose. And you're never too good to lose. You're never too big to lose. You're never too smart to lose. It happens.
学习数学的唯一方法就是做数学。
人生如此短暂,如此美好。不要对工作太认真。享受生活。
Collaboration is the foundation of progress in science—no one works alone.
家不是一个地方,而是一种感觉。