"I never perfected an invention that I did not think about in terms of the service it might give others. I find out what the world needs, then I proceed to try and invent it."

"I owe my success to the fact that I never had a watch or a clock in my laboratory."

"I make more mistakes than anyone I know, and sooner or later, I patent them all."

"I am a good listener, but I also have a great deal of patience."

"The chief function of the body is to carry the brain around."