"I'm not a serious fellow."

"I got a dollar for my patent! I give it to everybody. Result: everybody who has one of these patent because it was easy a lot of people had been sending things in lots of patents. Everybody come down …"

"I was brought up to believe that the only way to really understand something is to build it."

"I have a theory that the universe is a great big safe, and that there's a combination to open it. But the combination is locked up in the safe."

"I have a lot of fun. I've always had a lot of fun. I don't know why I should stop."