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

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

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

"I have not failed. I've just found 10,000 ways that won't work."

"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."