I have an irrepressible desire to live till I can be assured that the world is a little better for my having lived in it.

The truth is we have a consistent purpose that we got from our founder, some values that we share - those are persistent, too. It's not just change. But that's the thing that people underestimate about Walmart right now, that it has an ability to change.

So, what I think, sometimes a pure tech company can underestimate is the importance of culture, the importance of a purpose.

There just aren't that many opportunities in the world that are that big, and for a company like Walmart that needs to move the needle in a big way, you have to take some big bets, but if you're going to take that much risk, the reward has to match up.

I want to make a dent in the universe.

The world is a better place with Walmart in it.