—— 请按键盘 空白键 开始游戏 ——

I am not young enough to know everything.
我已经不再年轻,不再无所不知。
经济学方法为理解所有人类行为提供了一个有价值的统一框架。
The beauty of mathematics only shows itself to more patient followers.
"The beauty of cinema lies in its ability to make us feel less alone."