It's a course which is absolutely fascinating in all sorts of ways, and it has one very important thing in common with literary theory: that is to say, literary criticism is, too, perpetually concerned with the definition of literature.

这门课在各方面都很棒，而且它与文学理论有一个重要的相似之处：,即文学评论也永远会关注，文学的定义问题。

耶鲁公开课 - 文学理论导论课程节选

And this idea that the city is essentially analogous to the soul, that the city is like the soul, is the central metaphor around which the entire Republic is constructed.

而这种,将城市视为实质上可与灵魂比拟的概念，城市也有灵魂的概念，即是环绕整部《理想国》,构建的核心隐喻。

耶鲁公开课 - 政治哲学导论课程节选

So the pleasure is both intrinsically valuable and instrumentally valuable.

所以这份快乐即有固有价值,也有利用价值。

耶鲁公开课 - 死亡课程节选

And one common way to think about it, is to think about the value of r, or the radius, below which 90% of that electron density is going to be contained.

而通常的想法，是想象，r，的值，也就是半径的值，即有百分之九十的电子密度,都落在这个范围之内。

麻省理工公开课 - 化学原理课程节选