Looking inward and understanding where you made mistakes in the past helps you set up for change.

I'm very much looking forward to relentlessly focusing on ensuring an excellent guest experience, removing unnecessary complexity from our operations, championing innovation, and pursuing our mission of making better food accessible to more people.

The economic model was formed by the constraints that I had: a small space, relatively inexpensive building materials, relatively inexpensive investment, a very efficient service line or assembly line.

After a two-year stint at Stars, I wanted to start my own full-service restaurant, but I didn't have the funds to do so, so I got a modest loan from my parents and opened Chipotle with the goal of having it fund that restaurant.

We were told this war would be over in a matter of weeks, and that the Iraqis would be able to finance it with oil sales. We were promised it was not a mission of nation building.

It affects every aspect of our lives, is often said to be the root of all evil, and the analysis of the world that it makes possible - what we call 'the economy' - is so important to us that economists have become the high priests of our society. Yet, oddly, there is absolutely no consensus among economists about what money really is.

What better way to get to know a culture than to go there and learn their sports? And I say to people who tell me they can't travel, 'How much did you spend at the mall this year? How many times did you eat out? Take that money and go.'

Some of my conversations with Jay, I'm not really saying much, just listening. It's really just learning. I'm trying to have Jay Z's money.