http://whoisnapoleonhill.com/ Part 06 Self Discipline. Napoleon Hill explains what he learned from Andrew Carnegie in the early 1900s about The Law of Attraction and The Strangest Secret in the world. This information is from the, then, richest man in the world. Follow each 13 CLIPS for a video description of each of the Laws of Success. This is rare footage from the early 1960's on "Think and Grow Rich".