—— 请按键盘 空白键 开始游戏 ——

The secret of art lies in the love of what you are doing.
The times they are a-changin'.
任何经济理论的最终检验标准是它是否能改善现实世界的决策。
The beauty of mathematics lies in its simplicity and depth.
Sustainability isn't an option; it's a necessity for survival.