—— 请按键盘 空白键 开始游戏 ——

领导者的工作不是拥有所有答案,而是提出正确的问题。
过去是一面镜子,但我们往往只看到自己想看的东西。
Mental processes are tools for living, and their worth is in their use.
The only way to learn mathematics is to do mathematics.