Quotes by Thomas A. Edison

Thomas Edison held more than a thousand US patents and built the first industrial research laboratory at Menlo Park, which is arguably his real invention. The phonograph, a commercially practical electric light and an early motion picture system came out of it. He lost the current wars to Tesla and Westinghouse, and conducted parts of that fight disgracefully. He is quoted for perspiration over inspiration, which was a fair description of how the laboratory actually worked.