A theory could be so vague and all-encompassing that it can't even be tested.

一个理论有可能因为概念模糊,且体系庞大而难以得到验证。

耶鲁公开课 - 心理学导论课程节选

I think maybe it's because they didn't have the concepts down.

我想可能是因为,当时的人们并没有理论体系的支撑

耶鲁公开课 - 金融市场课程节选

You can see that when Wimsatt and Beardsley talk about the "success" of the poem, they understand the whole critical enterprise, - including its theoretical underpinnings-- the question of what is a poem, - the question of how should we best read it-- to be still geared toward literary evaluation.

大家应该发现，当文萨特与比尔兹利谈到,诗歌创作的“成功“一词时，他们完全理解了文学评论体系，这包括适用于文学评估的理论根基-,就是那些关于什么是诗歌，还有我们如何解读的问题-,这些都对文学评估很重要。

耶鲁公开课 - 文学理论导论课程节选

Like when they devised the first engines or the first nuclear reactors, it didn't work so well at first and then from the experience of many people working on it, over many years, a body of knowledge emerges and that's what we call technology.

这和发明出第一个发动机,或者第一个核反应堆时一样,最开始总是存在很多问题,但随着很多人不断努力去完善它,一种理论体系才得以不断发展,这就是我们所说的科技

耶鲁公开课 - 金融市场课程节选