Every painting is a failure in some way, but that's what keeps you going.

史记

The biggest risk is not taking any risk.

Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

理解黑洞就是理解宇宙的结构本身。

时间是一个从我们感知变化的方式中衍生出来的概念。