"Can't Be Right EVERY Time!" joke

"This 'telephone' has too many shortcomings to be seriously considered as a means of communication. The device is inherently of no value to us." - Western Union internal memo, 1876.
"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?" - David Sarnoff's associates in response to his urgings for investment in the radio in the 1920s.
"The concept is interesting and well-formed, but in order to earn better than a 'C,' the idea must be feasible." - A Yale University management professor in response to Fred Smith's paper proposing reliable overnight delivery service. (Smith went on to found Federal Express Corp.)
"Who the hell wants to hear actors talk?" - H.M. Warner, Warner Brothers, 1927.
"I'm just glad it'll be Clark Gable who's falling on his face and not Gary Cooper." - Gary Cooper on his decision not to take the leading role in "Gone With The Wind."
"We don't like their sound, and guitar music is on the way out." - Decca Recording Co. rejecting the Beatles, 1962.
"Heavier-than-air flying machines are impossible." - Lord Kelvin, president, Royal Society, 1895.
"If I had thought about it, I wouldn't have done the experiment. The literature was full of examples that said you can't do this." - Spencer Silver on the work that led to the unique adhesives for 3-M "Post-It" Notepads.
"Professor Goddard does not know the relation between action and reaction and the need to have something better than a vacuum against which to react. He seems to lack the basic knowledge ladled out daily in high schools." - 1921 New York Times editorial about Robert Goddard's revolutionary rocket work.
"Stocks have reached what looks like a permanently high plateau." - Irving Fisher, Professor of Economics, Yale University, 1929.
"Airplanes are interesting toys but of no military value." - Marechal Ferdinand Foch, professor of Strategy, Ecole Superieure de Guerre.
"Louis Pasteur's theory of germs is ridiculous fiction". - Pierre Pachet, Professor of Physiology at Toulouse, 1872.