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Restlessness is discontent — and discontent is the first necessity of progress. Show me a thoroughly satisfied man — and I will show you a failure.

— Thomas Edison The Diary and Sundry Observations of Thomas Alva Edison (1948)

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Failure

More quotes by Thomas Edison

Many of life's failures are people who did not realize how close they were to success when they gave up.

Opportunity is missed by most people because it is dressed in overalls and looks like work.

An Enemy Called Average (1990)

Just because something doesn't do what you planned it to do doesn't mean it's useless.

Artifacts : An Archaeologist's Year in Silicon Valley (2001)

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

We don't know a millionth of one percent about anything.

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Attribution

Quote text and notes from Wikiquote: Thomas Edison (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.