无法自爱就无法爱人，憎恨自己就一定会憎恨他人。

数学家的工作永远不会真正完成；总有更多的东西需要探索。

All changes, even the most longed for, have their melancholy; for what we leave behind us is a part of ourselves; we must die to one life before we can enter into another.

真相很少是纯粹的，也从不简单。

I don't think about medals. I think about my performance.

Success in business comes from understanding people, not just products.