—— 请按键盘 空白键 开始游戏 ——

I would not dare to say that there is a direct relation between mathematics and madness, but there is no doubt that great mathematicians suffer from maniacal characteristics.
睡得早起得早,使人聪明、富有、身体好。
人们说逝者总是在俯视着我们。但我们从不回望。