■ The Goldilocks Rule states that humans experience peak motivation when working on tasks that are right on the edge of their current abilities. ■ The greatest threat to success is not failure but boredom. ■ As habits become routine, they become less interesting and less satisfying. We get bored. ■ Anyone can work hard when they feel motivated. It’s the ability to keep going when work isn’t exciting that makes the difference. ■ Professionals stick to the schedule; amateurs let life get in the way.