During World War II, the pilot losses were staggering. In some bombing raids, as many as 80% of the planes that left did not return.

Because a true sense of purpose is deeply emotional, it serves as a compass to guide us to act in a way completely consistent with our values and beliefs. Purpose does not need to involve calculations or numbers. Purpose is about the quality of life. Purpose is human, not economic.

I'm pretty confident the why works now. When it first began, somebody said to me: "Will this work in big business?" I said, "I don't know. Let's try." Somebody said will this work in entrepreneurs, relationships or government and military. I said, "I don't know. Let's try." I kept applying the scientific method. I had a theory. I kept applying that theory, looking for opportunities to fail and it kept working.

I know if I persist it will pay back in dividends and it always does. What starts to happen is like exercise, the pain goes away. It starts to get easier and the weight starts to get lighter and people start to notice a difference in you and you start to notice a difference in yourself. You find your ability to make decisions is easier; you find you are inspired more often. You find your success increases. You find that your random moments when you're in the flow are no longer random and you can control them. Other people notice the difference.

True strength is the courage to admit our weaknesses.

Pilots have their names painted just beneath the canopy of their aircraft. This gives the pilot a sense of ownership for his or her jet. What's more, like cars, each aircraft has its own personality, so it's important for a pilot to get to know and love his aircraft.

During World War II, the pilot losses were staggering. In some bombing raids, as many as 80% of the planes that left did not return.