We can easily forgive a child who is afraid of the dark；the real tragedy of life is when men are afraid of the light.

我写作不是为了解释世界，而是为了理解世界。

Courage is the most important of all the virtues because without courage, you can't practice any other virtue consistently.

物理学的美丽在于它能够用简单的原理解释复杂的事物。

I don't want to be the next Michael Jordan, I only want to be Kobe Bryant.