—— 请按键盘 空白键 开始游戏 ——

The pain is temporary, but the glory is forever.
Music makes me happy and also sad.
Good econometrics is like good carpentry—it's all about using the right tool for the job.
Mathematics is not a spectator sport.
"Let me tell you the secret that has led me to my goal. My strength lies solely in my tenacity."