"We don't know a millionth of one percent about anything."

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

"So far as the religion of the day is concerned, it is a damned fake … Religion is all bunk."

"Non-violence leads to the highest ethics, which is the goal of all evolution."

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