Do you think I'd be stupid enough to go running with someone I was foolin' with?

You don't have to wait till your party's in power to have an impact on life at home and around the world.

This is a huge problem. If we don't deal with this within just a few years, you will have island nations flooded; you will have the agricultural balance of most countries completely changed; you will have a dramatic increase in the number of severe, unmanageable weather events... And the good news is that we can now deal with this problem - and strengthen our economic growth, not weaken it.

When you're president, you have more power to help more people, but you also are the prisoner of circumstances as well, and countervailing political forces more.

If you wanna maintain 20 percent of the world's income with 4 percent of the world's people, you gotta first of all have more shared prosperity and shared growth.

African Americans watch the same news at night that ordinary Americans do.

Sometimes there is a difference in what is legal and what ought to be done.