As Heidegger points out in this passage, that's a thought experiment which, if it can be done at all, derives from that prior knowledge.

海德格尔在文章中指出，这个思想实验，在可以实现的前提下，来源于之前的知识。

耶鲁公开课 - 文学理论导论课程节选

Aristotle, in his Politics of course, tells us the most on this subject and often he is our source of information.

亚里士多德,在他的《政治学》中,告诉我们很多有关这个主题的知识,他经常也是我们信息的来源

耶鲁公开课 - 古希腊历史简介课程节选