—— 请按键盘 空白键 开始游戏 ——

The stream of thought flows toward purposeful ends.
Mistakes are the portals of discovery.
用秤称一称,才能知道轻重;用尺量一量,才能知道长短。
The most dangerous phrase in the language is, 'We've always done it this way.'
I don’t let anyone dim my light.