"Louis Pasteur’s theory of germs is ridiculous fiction." (Pierre Pachet, Professor of Physiology at Toulouse , 1872)
"The abdomen, the chest, and the brain will forever be shut from the intrusion of the wise and humane surgeon," (Sir John Eric Ericksen, British surgeon, appointed Surgeon-Extraordinary to Queen Victoria 1873)
"The super computer is technologically impossible. It would take all of the water that flows over Niagara Falls to cool the heat generated by the number of vacuum tubes required." (Professor of Electrical Engineering, New York University)
"Heavier-than-air flying machines are impossible!" (Lord Kelvin, president, Royal Society, 1895)
"There is no likelihood man can ever tap the power of the atom." (Robert Millikan, Nobel Prize in Physics, 1923)
"Man will never reach the moon regardless of all future scientific advances." (Dr. Lee DeForest, Father of Radio & Grandfather of Television)
"The bomb will never go off. I speak as an expert in explosives." (Admiral William Leahy, re: US Atomic Bomb Project)