—— 请按键盘 空白键 开始游戏 ——

过去并非直线,而是错综复杂的网。
Start by doing what's necessary; then do what's possible; and suddenly you are doing the impossible.
Economics is at its best when it helps us solve real-world problems in a rigorous and transparent way.
所有伟大的真理开始于对上帝的亵渎。