—— 请按键盘 空白键 开始游戏 ——

You have to believe in yourself when no one else does.
Good econometrics is like good carpentry—it's all about using the right tool for the job.
设计良好的市场能最大限度地减少策略操纵的机会。
Science is not just about discovery, it's about solving real-world problems.