What was that quote about the intelligence of the American people?*

Brain-hurting endorsement spotted on the packaging of some "As seen on TV" gadget I didn't want in Bed, Bath & Beyond: "Pitchman Approved!"

To misquote a likely misquoted Abraham Lincoln: You can fool some of the people all of the time, and all of the people some of the time . . . and that's clearly good enough for most purposes.

*"No one ever went broke underestimating the intelligence of the American people." Not P.T. Barnum. Not Mark Twain. It was attributed to H.L. Mencken.