So, now I don't want to go too deeply into this, but if you're interested in this subject get a hold of his book.

我不想过多地赘述,如果你对这个课题感兴趣,就去读这本书吧

耶鲁公开课 - 古希腊历史简介课程节选

Read English books if you can. Try.

如果可以，就读英语书吧。试一试。

如果想提高英语水平 - SpeakingMax英语口语达人