—— 请按键盘 空白键 开始游戏 ——

自由是在法律允许范围内做任何事的权利。
The essence of mathematics lies in its freedom.
生活是一场冒险,不是一次包办旅行。
Each new situation requires a new architecture.
The only limit to your success is your own imagination.
Keep learning, keep growing.