After I wrote the book, Morningstar did a much more comprehensive study of every single one of the equity categories that they follow.

在我写完这本书之后,晨星公司对他们跟踪研究的每种股权资产,做了更进一步的研究

耶鲁公开课 - 金融市场课程节选

But, of course, they wanted to do much more and be more comprehensive.

但是，当然，他们想做得更好,希望能惠泽更多人。

耶鲁公开课 - 金融市场课程节选