—— 请按键盘 空白键 开始游戏 ——

The safest course is to do nothing against one's conscience.With this secret, we can enjoy life and have no fear from death.
I've learned that you can't control everything, but you can control how you react to it.
Experience is simply the name we give our mistakes.
一个好的数学家是能看到定理之间类比的人;一个伟大的数学家是能看到类比之间的类比的人。