—— 请按键盘 空白键 开始游戏 ——

The cognitive map is not a picture or a model in the head, but a dynamic, changing representation of the environment.
所有事情在被证明为不可能之前都是可能的,甚至不可能的事情也可能只是目前如此。
The most dangerous kind of waste is the waste we do not recognize.