—— 请按键盘 空白键 开始游戏 ——

Every language is an old-growth forest of the mind.
The most exciting moments in mathematics are when you see connections between things that seemed unrelated before.
富贵不能使我的思想迷乱,贫贱不能使我改变志向,威武不能使我节操屈服,这样的人才称得上大丈夫。