数学是一项协作的努力。没有人可以单独完成。

对付一个不自由的世界，唯一的方法就是变得如此绝对自由，以至于你的存在本身就是一种反抗。

I am not afraid of being overpowered by the impression. It will pass away soon enough.

"The most dangerous prisons are those we build for ourselves."

She walks in beauty like the night,Of cloudless climes and starry skies;All that's best of dark and bright，Meet in her aspect and her eyes.

永远不要过度交易。