—— 请按键盘 空白键 开始游戏 ——

States are inherently aggressive and expansionist because they exist in an anarchic international system where there is no higher authority to keep them in check.
唯一存在的限制是你给自己设定的限制。
In mathematics, the art of proposing a question must be held of higher value than solving it.
"The only way to do great work is to love what you do."