He seems to have known something about the modern economic theory of society long before modern economics was even developed.

而且是公开的驳斥,他似乎已知现代社会的经济原理,且是在现代经济学开始发展之前。

耶鲁公开课 - 政治哲学导论课程节选

That economy and that society go forward and flourish for, as I say, about 400 years maybe--perhaps about 400 years.

这种经济和社会,发展繁荣了,大概四百年,也许四百年

耶鲁公开课 - 古希腊历史简介课程节选