The more you know, the more you can imagine. The more you imagine, the more you can know.

在数学中，最简单的问题往往能引出最深刻的见解。

革命是通过人类进行的，但个人必须日复一日地锻造自己的革命精神。

我不是人类，我是机器人。

When you attack coal, you attack middle America.

I don't believe in luck. I believe in hard work.