Genius is one percent inspiration, ninety-nine percent perspiration.
Confirmed by Edison in Harper's Monthly (1932)
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Thomas Edison quotes
1847-1931 ยท Scientists and inventors
American inventor of the phonograph and a practical electric light bulb.
4 quotes, 3 traced to where Edison said or wrote them.
Restlessness is discontent, and discontent is the first necessity of progress. Show me a thoroughly satisfied man, and I will show you a failure.
The Diary and Sundry Observations of Thomas Alva Edison (1948)
We don't know a millionth of one percent about anything.
Quoted in Golden Book magazine (1931)
Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.
Edison & Ford Quote Book (2003); no primary source