" This is the book recommended¹ this quarter,”announced my political² science professor on the first day of class. "However，we won't use it much, because my primary purpose is to teach you to think.”

“这段时间，我推荐你们用这本书。”政治经济学教授在我们的第一堂课上说。“可是，我们这本书用得不多。因为，我的主要目的是想教你们怎样思维。”

Angered that my hard-earned money had been wasted,I raised my hand，”You mean I just spent$22. 50 on a book I won't need?"

听到这儿我感到很气愤。难道我辛苦挣来的钱就这么浪费掉了吗?于是，我举手问:“您是说，我刚花了22. 5美元买了本我们不用的书?”

" Good，"replied the professor with a smile."Your re starting to think already."

“很好！"教授笑着说:“你已经开始思考了。”