—— 请按键盘 空白键 开始游戏 ——

唯一真正的爱是对真理的爱。
The present is the past rolled up for action, and the past is the present unrolled for understanding.
如果你是用信用卡租车,不要购买额外的保险。
The true challenge in mathematics is not solving problems, but asking the right questions.