Tweeting has taught me the discipline to say more with fewer words.

Diabetes taught me discipline.

Being a magician taught me how powerful the element of surprise can be. In each book, I've tried to work that in - an unexpected twist in a story that reveals an insight, a counter intuitive study that turns your beliefs upside-down.

Saying no frees you up to say yes when it matters most.

When takers talk about mistakes, they're usually quick to place the blame on other people. Givers are more likely to say 'Here's the mistake I made; I learned the following from it. Here are the steps I'm taking to make sure I don't let people down in the future.'

Jerry like to run a tight ship as far as discipline is concerned, but I know him to be understanding and fair when it come to correcting their behavior.