—— 请按键盘 空白键 开始游戏 ——

一个好的数学家是能看到定理之间类比的人;一个伟大的数学家是能看到类比之间的类比的人。
A good mathematician is one who can see analogies between theorems; a great mathematician is one who can see analogies between analogies.
"Literature is the art of making the invisible visible."
I am not without possessions; I have freedom.
Life is 10% what happens to you and 90% how you react to it.