He lays out these questions at the very beginning of the fourth book of the Politics.

他将这些问题安排在《政治学》,第四册起始的篇章中。

耶鲁公开课 - 政治哲学导论课程节选

It just came out with the fourth edition and that book was a best seller.

这本书刚发行了第四版,这是本畅销书

耶鲁公开课 - 金融市场课程节选

And I think our time is about up, so we'll listen to this and you can go out as we hear the fourth statement of this.

我想我们的时间快要结束了,我们一边听就可以一边走了,我们听到的是第四次表达

耶鲁公开课 - 聆听音乐课程节选