Walt Disney had a very clear sense of why. He was about happiness. Remember when Disney was founded, it was during war. People said that life sucked. And he said, "No." He was an eternal optimist who said: "Life is beautiful. It's about giving. It's about family." Look what happened. His cause grew and people committed themselves to helping him grow the Disney why and it was hugely successful.

I never imagined I'd write a book.

Spending time with the military certainly lends itself to some remarkable experiences, and I've been privileged to have had my share.

We pursue exercise even though empirically we see no benefit from the energy we're spending and we're hurting. So empirically we should quit. The why is exactly the same thing. You persist even though there are some short-term stresses and even though there is some uncertainty.

Trust is maintained when values and beliefs are actively managed. If companies do not actively work to keep clarity, discipline and consistency in balance, then trust starts to break down.

Leadership is not a rank, it's a choice.

A poor leader will tell you how many people work for them. A great leader will tell you how many people they work for.