The square root of four is rainbows

Bragging rights if you can tell me where this quote is from.

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<a href="http://www.flickr.com/photos/sodsnodds/4124468399/" title="Photo Sharing"><img src="http://farm3.static.flickr.com/2521/4124468399_4805df87db_o.jpg" width="400" height="276" alt="2009_11_22_square_root_of_four" border="0"/></a><br /><p sytle="font-size: 0.8em;" >Doodle by <a href="http://leesvoice.blogspot.com">Lee</a>. The code for <a href="http://leesdoodles.blogspot.com/2009/11/square-root-of-four-is-rainbows.html">this doodle</a> and other doodles you can use on your blog can be found at <a href="http://leesdoodles.blogspot.com/">Doodles</a>.</p>