Read me a lesson, Muse, and speak it loud <br />Upon the top of Nevis, blind in mist! <br />I look into the chasms, and a shroud <br />Vapourous doth hide them, -- just so much I wist <br />Mankind do know of hell; I look o'erhead, <br />And there is sullen mist, -- even so much <br />Mankind can tell of heaven; mist is spread <br />Before the earth, beneath me, -- even such, <br />Even so vague is man's sight of himself! <br />Here are the craggy stones beneath my feet,-- <br />Thus much I know that, a poor witless elf, <br />I tread on them, -- that all my eye doth meet <br />Is mist and crag, not only on this height, <br />But in the world of thought and mental might!<br /><br />John Keats<br /><br />http://www.poemhunter.com/poem/sonnet-written-upon-the-top-of-ben-nevis/