—— 请按键盘 空白键 开始游戏 ——

天下是主体,君主是客体。
银河系中心附近的恒星就像宇宙时钟,帮助我们绘制时空图。
求知若饥,虚心若愚。
"The beauty of science is that it allows us to understand the world in a way that is both profound and practical."
The best way to predict the future is to invent it.
懒惰奢侈,招来贫困;勤劳节俭,累积财富。