—— 请按键盘 空白键 开始游戏 ——

Mathematics is a living subject, constantly evolving and growing.
The only purpose for which power can be rightfully exercised over any member of a civilized community, against his will, is to prevent harm to others.
我是一个喜欢被注意到的人。
简单性并不先于复杂性,而是随之而来。
There is no perfection only life.