—— 请按键盘 空白键 开始游戏 ——

we must constantly look at things in a different way.
我们必须时刻用不同眼光来看待事物。
在数学中,最简单的问题往往导致最深刻的发现。
"I always believe if you’re stuck in a hole and maybe things aren’t going well you will come out stronger."