Nothing is more powerful than the black church experience. A good choir and a good sermon in the black church, it's pretty hard not to be move and be transported.

There are values that transcend race or culture, that move us forward, and there's an obligation for all of us individually as well as collectively to take responsibility to make those values lived.

The brain is a body part too; we just know less about it.

The United States will do what we must to prevent Iran from obtaining a nuclear weapon.

I want my children - I want Malia and Sasha - to understand that they've got responsibilities beyond just what they themselves have done. That they have a responsibility to the larger community and the larger nation, that they should be sensitive to and extra thoughtful about the plight of people who have been oppressed in the past, are oppressed currently.

When it comes to crime, the violent crime rate in America has been lowered during my presidency and any time in the last three, four decades.

The US and Australia have a lot in common. One of the things we have in common is we produce a lot of carbon.