—— 请按键盘 空白键 开始游戏 ——

Mathematics is not just a collection of abstract theories, but a language that describes the universe.
Every tomorrow has two handles. We can take hold of it with the handle of anxiety or the handle of faith.
孔子说:“立场不同、观点不同,也就不要相互商议了。”
To understand everything is to forgive everything.