We have to think about affirmative action and craft it in such a way where some of our children, who are advantaged, aren't getting more favorable treatment than a poor white kid who struggled more.

I think it's fair to say that [Donald Trump] and I are sort of opposites in some ways.

Faith doesn't mean that you don't have doubts.

The United States has been a Pacific nation for over two centuries. That's not going to change.

Campaigning is different from governing.

Around the world, Gandhi, Nelson Mandela -- what they did was hard. It takes time. It takes more than a single term. It takes more than a single president. It takes more than a single individual.

One of the things you learn as president is, as powerful as this office is, you have limited bandwidth. And the time goes by really quickly and you're constantly making choices, and there are pressures on you from all different directions - pressures on your attention, not just pressures from different constituencies. And so you have to be pretty focused about where can you have the biggest, quickest impact.