Sidney Colvin,
Life of John Keats: His Life and Poetry…
“ From flaws or disfigurements of one or other of these kinds the poem is never free for more than a page or two, and rarely for so much, at a time. But granting all weaknesses and immaturities whether of form or spirit, what a power of poetry is in Endymion: what evidence, unmistakeable, one would have said, to the blindest, of genius. Did any poet in his twenty-second year ever write with so prodigal an activity of invention, however undisciplined and unbraced, or with an imagination so penetrating to divine and so swift to evoke beauty? ”

