I am the poet of reality
I say the earth is not an echo
Nor man an apparition;
But that all the things seen are real,
The witness and albic dawn of things equally real
I have split the earth and the hard coal and rocks and the solid bed of
the sea
And went down to reconnoitre there a long time,
And bring back a report,
And I understand that those are positive and dense every one
And that what they seem to the child they are
[And the world is no joke,
Nor any part of it a sham]
— Walt Whitman, 1921, I am the Poet, Leaves of Grass