When Hope but made Tranquillity be felt--
A Flight of Hopes for ever on the wing
But made Tranquillity a conscious Thing--
And wheeling round and round in sportive coil
Fann'd the calm air upon the brow of Toil--
Samuel Taylor Coleridge
http://www.poemhunter.com/poem/when-hope-but-made-tranquillity-be-felt-fragment/
