—— 请按键盘 空白键 开始游戏 ——

自由是按照我们意愿生活的权利。
The world is a great fire, and we are the sparks.
行义事不能进行时,不要责怪道义。 
Light is the most important material in architecture.
If at first the idea is not absurd, then there will be no hope for it.
I think that the thing that makes mathematics worthwhile is the fact that it has this incredible structure that you can explore and discover.