—— 请按键盘 空白键 开始游戏 ——

The difference between good and great is the extra effort.
The pursuit of mathematical truth requires both intuition and rigor.
在科学中最令人兴奋的短语,预示着新发现的,不是“我找到了!”而是“这有点奇怪……”
The greatest freedom is the freedom to choose your own thoughts.