—— 请按键盘 空白键 开始游戏 ——

Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.
如果你能梦想它,你就能实现它。
我可残酷,但不可无良心;我可用语言的利剑来刺戳她,但决不用真刃。