想象就是一切，知识却什么都不是。

"Manchmal muss man weit reisen, um zu verstehen, was zu Hause passiert."

I am the happiest creature in the world. Perhaps other people have said so before, but not one with such justice. I am happier even than Jane; she only smiles, I laugh.

Let me tell you the secret that has led me to my goal. My strength lies solely in my tenacity.

Every mathematical problem has a solution; the challenge is finding it.

追求幸福并不自私——它对于有意义的生活至关重要。

我在脆弱中找到了力量。

在一切事情中，创造系统是必要的。