—— 请按键盘 空白键 开始游戏 ——

The mathematician's best work is art, a high perfect art, as daring as the most secret dreams of imagination, clear and limpid.
所有发生过一次的事物都不会再发生。但是所有发生过两次的事物必定会第三次发生。
The quality of an organization's values determines the quality of its culture.