More quotes by Thomas A. Edison

"I have friends in overalls whose friendship I would not swap for the favor of the kings of the world."
"Many of life's failures are people who did not realize how close they were to success when they gave up."
"When you have exhausted all possibilities, remember this - you haven't."
"Genius is one percent inspiration, ninety-nine percent perspiration."
"Many of life's failures are people who did not realize how close they were to success when they gave up."