I should say, to my knowledge, we know nothing more about Glaucon and Adeimantus from history, but Plato put them into his dialogue.

我必需说的是，就我所知Glaucon，和，Adeimantus，两人,仅是历史中的两个角色，但柏拉图将他们放入他的对话录。

耶鲁公开课 - 政治哲学导论课程节选

So there's nothing naturally going on unless we were to introduce it ourselves in our body that we know of, at least, that involves lithium.

因此，在正常情况下,什么都不会发生，除非我们有意识地摄入锂,起码在我们知道某些活动需要锂的情况下。

麻省理工公开课 - 化学原理课程节选

And just to give you some small defense of that approach, I always like to ask students, "Suppose we didn't have a single historical record, no newspaper, no diaries. You know nothing totally reliable for what happened in the latter part of the eighteenth century in America."

我可以给你们一个反驳的理由,我总是问学生们,"如果没有历史文献,报纸和日记,那么对于美国十八世纪后期的历史,你们将一无所知"

耶鲁公开课 - 古希腊历史简介课程节选