They're usually addressed to groups of people, and they deal with sort of philosophical sounding issues, and they give advice on group problems.

通常是写给一群人的，讨论哲学问题，给团体问题提出一些建议。

耶鲁公开课 - 新约课程节选

Almost from the beginning, but increasingly during the twenties, they turned their attention to the problems of literary historiography, and they said some rather bracing things about it.

从一开始，特别是20世纪中，他们越发重视文学历史编撰学，他们提出过一些相当让人振奋的建议。

耶鲁公开课 - 文学理论导论课程节选