—— 请按键盘 空白键 开始游戏 ——

The process of doing mathematics is more important than the result.
"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."
【释义】务必保证货物的质量,不要让货币闲置。
"History is not what happened, but what we remember and how we remember it."
The unity of Europe is a historical necessity.
粮食安全的未来就在波涛之下,我们必须负责任地养殖。