If I walk in Autumn's even <br />While the dead leaves pass, <br />If I look on Spring’s soft heaven,-- <br />Something is not there which was <br />Winter's wondrous frost and snow, <br />Summer's clouds, where are they now?<br /><br />Percy Bysshe Shelley<br /><br />http://www.poemhunter.com/poem/stanza/
