Sometimes the most profound mathematics comes from playing with simple ideas until they reveal their hidden complexity.

"The only thing that is truly infinite is the human soul."

不要轻易放弃，因为你永远不知道下一秒会发生什么。

To lose one parent may be regarded as a misfortune; to lose both looks like carelessness.

如果你无所畏惧，生活就会无限可能。