Is This a Fair Use?

Image by Thought Catalog from Pixabay

This is an excerpt from a work of poetry you can find here.

I go to the woods, in the words
of Thoreau, “to live deliberately,
to front only the essential facts of life,
and see if I could not learn what
it had to teach, and not, when
I came to die, discover that
I had not lived.”

There, they said it.