"And it's important to record this for history. Especially people that don't realize that here was a place on the high northern plains, the high prairie, where this kind of thing occurred."

VOA: standard.2010.06.22

The price of paper fell and created opportunity for record-keeping, which was very important because that's what finance is built-- you need financial records.

纸价下跌,从而使得纸质记录成为了可能，这点至关重要,因为这是金融立身之本-,人们需要财务记录。

耶鲁公开课 - 金融市场课程节选