“
bottles. But the shy recruit beamed as he was praised. “I hand out a number of compliments, and all of them are designed to be unexpected,” said Sergeant Dennis Joy, a thoroughly intimidating drill instructor who showed me around the Recruit Depot one day. “You’ll never get rewarded for doing what’s easy for you. If you’re an athlete, I’ll never compliment you on a good run. Only the small guy gets congratulated for running fast. Only the shy guy gets recognized for stepping into a leadership role. We praise people for doing things that are hard. That’s how they learn to believe they can do them.
”
”
Charles Duhigg (Smarter Faster Better: The Secrets of Being Productive in Life and Business)