—— 请按键盘 空白键 开始游戏 ——

The journey of solving a mathematical problem is as important as the solution itself, for it teaches us patience, persistence, and the joy of discovery.
Do not feel envious of the happiness of those who live in a fool’s paradise, for only a fool will think that it is happiness.
The art of teaching is not to impart knowledge, but to inspire, awaken, and encourage.
不要因为累了就停下来,完成了再停下来。