Companies that grow for the sake of growth or that expand into areas outside their core business strategy often stumble. On the other hand, companies that build scale for the benefit of their customers and shareholders more often succeed over time.

I hope the story of 2011 is that America gets its mojo back. You've got to remember that America has the best universities; it's got some of the best businesses. It's got an unbelievable work ethic, rule of law. The story of 2011 will be America blossoming again.

I've always wanted to help build a better society and build a better company, and I always wanted a healthy, vibrant company, a healthy, vibrant society. We take care of our people, we provide them with opportunity. But I've always believed business is here to serve your clients, your shareholders, your communities. If we do this well, everyone benefits. We have to do a good job for all of them.

We, Americans, have the best country on the planet. We have schools, universities, food, water, energy, peaceful neighbors, low corruption, you name it, deepest and widest capital markets. That doesn't mean we shouldn't identify problems. We don't have a divine right to success.

I think what you've seen them do recently in the markets is what most of us learn doesn't ultimately work. But I think everyone has to figure that on their own.

Part of [Japanese companies] growing and expanding around the world is ... going to help the Japanese keep their lifestyles [despite Japan's] demographics, as a declining population, and [to] make it more conducive to women to go to work, I think, is a plus.

Their [American banks] big issue will be if they want to deal with the biggest companies, which are doing a lot of business overseas. How they do that is a big question. It's almost impossible to build a global investment bank from scratch. If they want to do that, they probably will have to do an acquisition.