—— 请按键盘 空白键 开始游戏 ——

The most important property of a program is whether it accomplishes the intention of its user.
老年人相信每一件事物;中年人猜疑每一件事物;青年人什么都懂。
The doorway to happiness opens from the inside.
Mathematics is the music of reason.
The loss of money is the least of all losses, but the loss of confidence is the greatest of all.