—— 请按键盘 空白键 开始游戏 ——

君子做学问,目的是为了明白道理,拯救社会。
The definition of a good mathematical problem is the mathematics it generates rather than the problem itself.
We must balance immediate energy needs with long-term sustainability goals.
The darkest nights produce the brightest stars.
Innovation is not just about technology, it's about changing people's lives.