The past is a shadow that follows us, a ghost that haunts us.
过去是一个跟随我们的影子，一个困扰我们的幽灵。
"In the midst of winter, I found there was, within me, an invincible summer."
The most important thing is to be honest with yourself.
我们要用全球化的视野来布局未来。
Stay hungry, stay foolish.
人们有时为了得到自己想要的东西，会变得残酷。
学习数学的唯一方法就是做数学。