Comedians would probably not exist without politicians, whose speeches have always been full of splendidly stupid quotes:
Go here for a list of the top 10 moronic mutterings from politicians worldwide.
My favorite is the following from George W. Bush (pictured here trying to concentrate while someone asks him a question!):
"Our enemies are innovative and resourceful, and so are we. They never stop thinking about new ways to harm our country and our people, and neither do we." – Washington, D.C., August 5, 2004 – George W. Bush.