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Thomas Edison (Thomas Alva Edison)

(1847 – 1931) An American inventor, scientist and businessman who developed many devices that greatly influenced life around the world, including the phonograph, the motion picture camera, and a long-lasting, practical electric light bulb. In addition, he created the world’s first industrial research laboratory and is one of the first inventors to apply the principles of mass production and large teamwork to the process of invention.

Anything that won't sell, I don't want to invent. Its sale is proof of utility, and utility is success.

Be courageous. I have seen many depressions in business. Always America has emerged from these stronger and more prosperous. Be brave as your fathers before you. Have faith! Go forward!

Being busy does not always mean real work. The object of all work is production or accomplishment and to either of these ends there must be forethought, system, planning, intelligence, and honest purpose, as well as perspiration. Seeming to do is not doing.

Discontent is the first necessity of progress.

Everything comes to him who hustles while he waits.

Genius is one percent inspiration and ninety-nine percent perspiration.

Great ideas originate in the muscles.

Hell, there are no rules here - we're trying to accomplish something.

His genius he was quite content in one brief sentence to define; Of inspiration one percent, of perspiration, ninety nine.

I am proud of the fact that I never invented weapons to kill.