数学家研究纯数学不是因为它有用；他研究它是因为他喜欢它，他喜欢它是因为它美丽。

我希望永远保留着份爱，我希望终生都能这样的爱你。

Love is the most important thing in life.

The metals we pull from the ground should build bridges between people, not walls.

If you wish to succeed, you should use perdistence as your good friend, experiece as your reference, prudence as your brother and hope as your sentry.

True innovation happens when you question the assumptions everyone else accepts.

I'm mentioning all this -- I'm mentioning all this because I think this is not merely a personal problem; you may think I'm wrong in this, but I think we live in an age when our lives are regularly punctuated by career crises, by moments when what we thought we knew -- about our lives, about our careers -- comes into contact with a threatening sort of reality.

The best stories are those that make us see ourselves in others.