有一个学生在上耶鲁大学时,产生了一个创新性的航空货运理念,他认为这个想法必然会使人们发送和接受邮件包裹的方式会发生翻天覆地的变革。于是,他在经济学课程的期末论文中提出了自己的这个想法。结果令人伤心的是,教授打回了他的论文,封面上有一个红笔写的硕大的“C”:“理念很有趣,也很严谨,但是,如果你想得到高过C的成绩的话,就不要写这些不可行的事情了。” One student at Yale University came up with an innovative concept of airfreight that he believes will inevitably lead to dramatic changes in the way people send and receive mail packages. As a result, he put forward his own idea in the final essay of economics course. Sadly, the professor called back his essay, and there was a gigantic “C” on the cover: “The idea is very interesting and rigorous, but if you want to get over C Score, do not write these impractical things. ”