"I don't care how many inventions I make. I want to make one that will benefit humanity."

"I am not a believer in the theory of evolution. I believe in the theory of creation. I believe that God created the world and everything in it."

"I could always invent something for which there was a demand."

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

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