It suggests both the difference between the earlier Yeats and the middle Yeats, but also importantly the kinds of continuity between them the ways in which Yeats remained very much the same poet.

这首诗表明了叶芝,早期和中期作品的差别，但很重要的是这两个时期,存在着一种延续性,叶芝作为诗人基本还是那样。

耶鲁公开课 - 现代诗歌课程节选