—— 请按键盘 空白键 开始游戏 ——

世界上最好和最美丽的东西是看不见甚至摸不着的——它们必须用心去感受。
"The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart."
The world is beautiful, but it has a disease called man.
光是所有存在的起源。
In mathematics, the simplest questions often lead to the deepest insights.