"I never did a day's work in my life. It was all fun."

"I am not a spiritualist, but I am a firm believer in the fact that we can communicate with the beyond. I believe that we can build a machine that will allow us to hear the voices of the dead."

"My principal business is to be a failure. I fail in a great many things. Every time I fail, I learn something. That is the way I succeed."

"I have friends in the electrical industry who would be very happy to see me dead."

"I owe my success to the fact that I never had a clock in my workroom. Seventy-five of us worked twenty hours every day and slept only four hours — and thrived on it."