—— 请按键盘 空白键 开始游戏 ——

The key is to keep improving, to keep working hard.
In energy, the only constant is change—embrace it.
在数学中,你不理解事物。你只是习惯它们。
Democracy... while it lasts is more bloody than either aristocracy or monarchy. Remember, democracy never lasts long. It soon wastes, exhausts, and murders itself. There is never a democracy that did not commit suicide.