—— 请按键盘 空白键 开始游戏 ——

We are all the sum of our memories.
The study of mathematics is like air or gravity – it’s everywhere, even if you don’t see it.
当有人真正倾听你而不对你做出评判,不试图为你承担责任,不试图塑造你时,感觉真是太好了!