—— 请按键盘 空白键 开始游戏 ——

Mathematics is the key to unlocking the secrets of the universe and understanding the fundamental laws that govern it.
I used to think the world was broken down by tribes. Then I thought it was broken down by rich and poor. Then I thought it was broken down by stupid and smart. But I know now that it is broken down by people who are alive and people who are dead.