我们不是因为变老而停止玩耍，而是因为停止玩耍而变老。

Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.

生命的终结是幸福，而幸福是宁静。

理论物理学对物理学家而言，就像望远镜对天文学家一样重要。