The best explanation I've seen yet is one Hobbes gave to Calvin: http://www.gocomics.com/calvinandhobbes/2009/02/18/ http://www.gocomics.com/calvinandhobbes/20

The best explanation I've seen yet is one Hobbes gave to Calvin: http://www.gocomics.com/calvinandhobbes/2009/02/18/ http://www.gocomics.com/calvinandhobbes/2009/02/18/