“‘Paradise Lost’ was printed in an edition of no more than 1,500 copies and transformed the English language. Took a while. Wordsworth had new ideas about nature: Thoreau read Wordsworth, Muir read Thoreau, Teddy Roosevelt read Muir, and we got a lot of national parks. Took a century. What poetry gives us is an archive, the fullest existent archive of what human beings have thought and felt by the kind of artists who loved language in a way that allowed them to labor over how you make a music of words to render experience exactly and fully.”