Great leaders don't need to act tough. Their confidence and humility serve to underscore their toughness.

Make it about them, not about you.

I'm very prescriptive about who I work with. I'm very clear about what I believe. If they believe what I believe I will work with them. If they say things like, "Convince me we should do this." I walk away.

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

I would never find myself or unlikely to find myself in a room where I have a skeptic who brought me in. But I very often am in a situation somebody who's there who didn't invite me was a skeptic. That happens all the time.

If you're looking for a New York Times best-seller, I may or may not give you that.

The reality is that fulfillment, success and all of these good things comes from trying to help those that we care about to achieve those things. How can I help somebody I care about find the job they love? How can I help somebody I care about find happiness in their work? And when we commit to service it actually biologically and anthropologically is more likely to lead to our own success and our own happiness.