So it started to drift and people started to think I think a guinea is worth more than twenty shillings and the market price drifted up to twenty-one shillings.

所以，它的价值开始波动，人们开始考虑,我认为一个几尼的价值多于二十个先令的价格,于是市场价格就上升到二十一先令的价值上去了。

耶鲁公开课 - 金融市场课程节选