—— 请按键盘 空白键 开始游戏 ——

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
我不是来讨人喜欢的,我是来做我的工作的。
在干燥的情况下耕种,虽然土被晒得开裂,一旦下雨,土地干燥的情况就可以得到缓解了。
Your time is limited, so don't waste it living someone else's life.
The only thing that’s keeping you from getting what you want is the story you keep telling yourself.