最激动人心的突破往往来自意想不到的地方。

人类的状况是不断的斗争，但也是无尽的可能性。

I’m focused on what I need to do to be successful.

Look at the stars, look how they shine for you.

At the close of our studies， we knew all the past of physics， but nothing of the present and the future.

多走楼梯。