—— 请按键盘 空白键 开始游戏 ——

写作的行为是一种反抗的行为。
The best way to learn econometrics is by doing—working with real data and real problems.
内心慎防杂念,会更加机敏;眼光审慎万物,则愈加明亮。
The gaming industry changes rapidly, and only continuous learning can prevent obsolescence.