You remember that Milton had vowed to his friend Charles Diodati in the Sixth Elegy that he would become an epic poet some day, and that he was taking all of the necessary steps to transform himself into an epic poet.

弥尔顿曾在第六挽歌中向他的朋友查尔斯，迪奥达蒂宣布,他有一天将成为一名史诗诗人，他也在不断努力,把自己变为一名史诗诗人。

耶鲁公开课 - 弥尔顿课程节选

Milton claims that he will one day use the English language to express what he calls "some graver subject," some more important subject matter, and he proceeds to characterize what that graver subject will look like.

弥尔顿声称有一天他将用英语,来表达他所谓的“一些严肃的主题“,还有一些更重要的主题，然后他继续描述这些严肃的主题都是什么样的。

耶鲁公开课 - 弥尔顿课程节选