And this is something to contrast with the early Yeats and its high idealism, and its drive to exist in an abstract and ideal world.

这可与早期他诗歌的理想主义,致力表现，抽象理想世界作对比。

耶鲁公开课 - 现代诗歌课程节选

There's no language in the world that you just cannot talk about abstract things with.

世界上并不存在,无法谈论抽象概念的语言

耶鲁公开课 - 心理学导论课程节选

Now, a lot of today is going to be fairly abstract, so I just want to remind you that Game Theory has some real world relevance.

今天所讲的很多内容会很抽象,但我想要提醒大家,博弈论与现实世界是紧密联系的

耶鲁公开课 - 博弈论课程节选