We think leadership is about rank and power, but better to think of leadership as the responsibility for other human beings. That leadership and rank may not go together. So it manifests in this remarkable way.

I cannot tell you how long it takes for your exercise to work. If you haven't seen any results in a year or six months you're doing something wrong.

There are two kinds of experts: academic experts and practical experts. One is not better than the other, but they are very different, and each offers very different value.

All these companies that grew to any sizable proportions were all founded with a belief or a cause bigger than their products or services. It was their products or services that helped them bring that cause to life.

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.

Offer someone the opportunity to rebuild a company or reinvent an industry as the primary incentive, and it will attract those drawn to the challenge first and the money second.

Trust has two dimensions: competence and integrity. We will forgive mistakes of competence. Mistakes of integrity are harder to overcome.