“He should sweep streets so well that all the host of heaven and earth will pause to say, 'Here lives a great street-sweeper who did his job well'”

“There is no substitute for hard work.”

“I believe that opportunity looks a lot like hard work.”

“You can't have a million dollar dream with a minimum wage work ethic.”

“I'm a great believer in luck, and I find the harder I work, the more I have of it.”