There is a wonderful book called "Gandhi's Truth," by Erik Erikson, the psychologist. It is a great book. And I remember reading that and thinking about this connection between what we think in our personal lives and how that manifests itself in our politics. Those are two books, just off the top, that I think are sort of representative of reading that I did at that time. I never get a chance to read anymore.

You're the reason why selfless soldiers won't be kicked out of the military because of who they are or who they love.

When Americans are called on to innovate, that's what we do - whether it's making more fuel-efficient cars or more fuel-efficient appliances, or making sure that we are putting in place the kinds of equipment that prevents harm to the ozone layer and eliminates acid rain. At every one of these steps, there have been folks who have said it can't be done. There have been naysayers who said this is going to destroy jobs and destroy industry. And it doesn't happen because once we have a clear target to meet, we typically meet it. And we find the best ways to do it.

Get involved in an issue that you're passionate about. It almost doesn't matter what it is ... We give too much of our power away, to the professional politicians, to the lobbyists, to cynicism. And our democracy suffers as a result.

One of the things I've learned about being president is that we'll work on issues for long periods of time, sometimes in obscurity.

After my election there was talk of a postracial America. And such a vision, however well intended, was never realistic.

Like it or not, we have to have a financial system that is healthy and functioning.