—— 请按键盘 空白键 开始游戏 ——

就因为你喜欢我的东西,不代表我就欠你什么东西。
In mathematics, the journey from confusion to clarity is the most rewarding experience.
The body is the temple of the soul.
I must study politics and war that my sons may have liberty to study mathematics and philosophy.
We are never the same with others as when we are alone. We are different, even when we are in the dark.