Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor and businessman, who has been described as America's greatest inventor. He developed many devices that greatly influenced life around the world, including the phonograph, the motion picture camera, and the long-lasting, practical electric light bulb.
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To my mind the old masters are not art, their value is in their scarcity.
Anything that won't sell I don't want to invent. Its sale is proof of utility and utility is success.
His genius he was quite content in one brief sentence to define, Of inspiration one percent of perspiration ninety nine.
To have a great idea have a lot of them.