—— 请按键盘 空白键 开始游戏 ——

The preservation of the means of knowledge among the lowest ranks is of more importance to the public than all the property of all the rich men in the country.
There will be obstacles. There will be doubters. There will be mistakes. But with hard work, there are no limits.
"The greatest glory in living lies not in never falling, but in rising every time we fall."
The canvas is a mirror, reflecting not just the artist's soul but the soul of society.
在量子材料的领域中,拓扑的概念提供了一个强大的透镜,通过它我们可以理解和预测新的物质相。
一个女人能为她的孩子做的最重要的事情就是爱他们的父亲。