The true value of a leader is not measured by the work they do. A leader's true value is measured by the work they inspire others to do.

The passion to change the world for the better is a more powerful force than defense to keep it the same.

I look for the hotels that have figured out the comfortable balance - a modern room that is well designed, and really clean sheets.

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.

If you help one person in the room, you're an abject failure. You have to change something.

I never set out to do the things I'm doing now.

It's the discipline to understand that the things that might make you rich or things might make you famous are sometimes worth pursuing and sometimes are not.