Someday, our children, and our children’s children, will look at us in the eye and they'll ask us, did we do all that we could when we had the chance to deal with this problem and leave them a cleaner, safer, more stable world?

There's not a liberal America and a conservative America - there's the United States of America.

Climate change is one of the issues I worry most about because its impacts are enormous. But they're gradual, they're not immediate.

Legislatively, the thing I'm most proud of is healthcare, and I will continue to be most proud of it because not only do we have 30 million people who are going to get healthcare, we've got six million young people who are able to stay on their parents' plan until they're 26.

Africa doesn't need strongmen, it needs strong institutions.

The United States does not have a monopoly on crazy people. It's not the only country that has psychosis. And yet we kill each other in these mass shootings at rates that are exponentially higher than anyone else. Well, what's the difference? The difference is that these guys can stack up a bunch of ammunition in their houses, and that's sort of par for the course.

We need more responsibility, but we need it not just when there's a crisis. I mean, we've had years in which the reigning economic ideology has been what's good for Wall Street, but not what's good for Main Street.