Keats, John
Beauty is truth, truth beauty, that is all Ye know on earth, and all ye need to know.
beauty
Keats, John
Scenery is fine - but human nature is finer.
human
Keats, John
Heard melodies are sweet, but those unheard are sweeter.
imagination
Keats, John
He ne'er is crowned with immortality Who fears to follow where airy voices lead.
immortality