He taught the implicated orbits woven
  Of the wide-wandering stars; and how the sun
  Changes his lair, and by what secret spell
  The pale moon is transformed, when her broad eye
  Gazes not on the interlunar sea.
  He taught to rule, as life directs the limbs,
  The tempest-wingèd chariots of the Ocean,
  And the Celt knew the Indian. Cities then
  Were built, and through their snow-like columns flowed
  The warm winds, and the azure ether shone,
  And the blue sea and shadowy hills were seen.
  Such, the alleviations of his state,
  Prometheus gave to man, for which he hangs
  Withering in destined pain; but who rains down
  Evil, the immedicable plague, which, while
  Man looks on his creation like a god
  And sees that it is glorious, drives him on,
  The wreck of his own will, the scorn of earth,
  The outcast, the abandoned, the alone?
  Not Jove: while yet his frown shook heaven ay, when
  His adversary from adamantine chains
  Cursed him, he trembled like a slave. Declare
  Who is his master? Is he too a slave?