And all the way, to guide their chime, With falling oars they kept their time.
And yonder all before us lie Deserts of vast eternity.
Annihilating all that's made, To a green thought in a green shade.
My vegetable love should grow Vaster than empires, and more slow.
So much one man can do that does both act and know.
My love is of a birth as rare As 'tis, for object, strange and high; It was begotten by Despair Upon Impossibility.