You see this grntle stream that glides, <br />Shoved on, by quick-succeeding tides: <br />Try if this sober stream you can <br />Follow to th' wider ocean, <br />And see, if there it keeps unspent <br />In that congesting element. <br />Next, from that world of waters, then <br />By pores and caverns back again <br />Induct that inadultrate same <br />Stream to the spring from whence it came. <br />This with a wonder when ye do, <br />As easy, and else easier too: <br />Then ye may recollect the grains <br />Of my particular remains, <br />After a thousand lusters hurled, <br />By roughing winds, around the world.<br /><br />Robert Herrick<br /><br />http://www.poemhunter.com/poem/proof-to-no-purpose/