Gravitational waves are a new way of observing the universe, allowing us to hear the cosmos.

You think when you wake up in the mornin yesterday don't count. But yesterday is all that does count. What else is there? Your life is made out of the days it's made out of. Nothin else.

No matter how good you get you can always get better, and that's the exciting part.

True leadership is about serving others, not yourself.

知识就是力量，但学习是超能力。

教育是老年人的最佳粮食。

人生并没有你想象的那么长。