"Genius is one percent inspiration and ninety-nine percent perspiration."

"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 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 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."

"Five percent of the people think; ten percent of the people think they think; and the other eighty-five percent would rather die than think."