He said, "I had a lot of trouble, I took it to department stores and I said, why don't you sell this?

他说，当时我遇到了很多麻烦，我把它拿到百货公司，我说，你们为何不销售这个呢？

耶鲁公开课 - 金融市场课程节选

Imagine if an aeronautics engineer : woke up in the morning and said, "you know,the Law of Gravity thing really makes things difficult for me.

试想一下，如果一个航空工程师,在早上醒来，说，“万有引力,真的带给我很多麻烦。

哈佛公开课 - 幸福课课程节选