Many of life's failures are people who did not realize how c... - Thomas A. Edison

"The three great essentials to achieve anything worthwhile are, first, hard work; second, stick-to-itiveness; third, common sense."

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

"To invent, you need a good imagination and a pile of junk."

"I have friends in overalls whose friendship I would not swap for the favor of the kings of the world."

"When you have exhausted all possibilities, remember this - you haven't."