—— 请按键盘 空白键 开始游戏 ——

The problem with the world is that the intelligent people are full of doubts, while the stupid ones are full of confidence.
I don’t want to be put in a box.
The circular economy is about creating a system that works long-term, for everyone.
数学之美不仅在于其抽象的优雅,还在于其建模和解决现实世界问题的深刻能力。