But strength alone though of the Muses born
Is like a fallen angel: trees uptorn,
Darkness, and worms, and shrouds, and sepulchres
Delight it; for it feeds upon the burrs,
And thorns of life; forgetting the great end
Of poesy, that it should be a friend
To sooth the cares, and lift the thoughts of man.
"Sleep and Poetry", st. 11. - Poems (1817)