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

In mathematics, the art of proposing a question must be held of higher value than solving it.

"I think it should be called a lie because a pig is not like a day and people do not have skeletons in their cupboards."

我们来到世上是为了尽自己所能给生活增加一些东西，而不是为了从生活中获取我们所能得到的一切。

你可以拥有一切。只是不能同时拥有。