"Computers in the future may weigh no more than 1.5 tons."
"I think there is a world market for maybe five computers."
"I have traveled the length and breadth of this country and talked with the best people, and I can assure you that data processing is a fad that won't last out the year."
"But what ... is it good for?"
"There is no reason anyone would want a computer in their home."
"640K ought to be enough for anybody."
"This 'telephone' has too many shortcomings to be seriously considered as a means of communication. The device is inherently of no value to us."
"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
"The concept is interesting and well-formed, but in order to earn better than a 'C,' the idea must be feasible."
"Who the hell wants to hear actors talk?"
"I'm just glad it'll be Clark Gable who's falling on his face and not Gary Cooper."
"A cookie store is a bad idea. Besides, the market research reports say America likes crispy cookies, not soft and chewy cookies like you make."
"We don't like their sound, and guitar music is on the way out."
"Heavier-than-air flying machines are impossible."
"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."
"So we went to Atari and said, 'Hey, we've got this amazing thing, even built with some of your parts, and what do you think about funding us? Or we'll give it to you. We just want to do it. Pay our salary, we'll come work for you.' And they said, 'No.' So then we went to Hewlett-Packard, and they said, 'Hey, we don't need you. You haven't got through college yet.'"
"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."
"You want to have consistent and uniform muscle development across all of your muscles? It can't be done. It's just a fact of life. You just have to accept inconsistent muscle development as an unalterable condition of weight training."
"Stocks have reached what looks like a permanently high plateau."
"Airplanes are interesting toys but of no military value."
"Everything that can be invented has been invented."
"Louis Pasteur's theory of germs is ridiculous fiction".
"The abdomen, the chest, and the brain will forever be shut from the intrusion of the wise and humane surgeon".