"It is not because things are difficult that we do not dare; it is because we do not dare that they are difficult."

"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 no respect for the man who says he is too busy to read. He is too busy to live."

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

"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."