"My success is due to the fact that I never went to school and was never forced to learn anything but what I wanted to know."

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

"I have never seen a man who was afraid of a woman. I have seen men who were afraid of women's tongues."

"Restlessness is discontent and discontent is the first necessity of progress. Show me a thoroughly satisfied man and I will show you a failure."

"The phonograph is not of any commercial value."