Power is not a toy we give to children. It is a weapon we place in the hands of soldiers.
在数学中，提出问题的艺术必须比解决问题更有价值。
Do you believe in the human heart? I don't mean simply the organ, obviously. I'm speaking in the poetic sense. The human heart. Do you think there is such a thing? Something that makes each of us special and individual?
让你难过的事情，有一天，你一定会笑着说出来。