每一种语言的书籍都有——新书，古书，甚至还有一本关于伊拉克历史的书，这本书已经有700年了。

The books are in every language—new books, ancient books, even a book on the history of Iraq that is seven hundred years old.

youdao

古书描述了此病的具体症状。

The symptoms were described in ancient writings.

youdao

So why then does political science apparently uniquely among the social sciences continue to study Aristotle Locke ? and other old books?

那为何政治科学,显然和其它社会科学一样独特,继续研究亚里士多德，洛克,和其它的古书呢？

耶鲁公开课 - 政治哲学导论课程节选