Just because we have the best hammer does not mean that every problem is a nail.

I think we all know that world owes an enormous debt to Greece and the Greek people.

As I said in my State of the Union address ensuring the security of the United States and the safety of our people demands a smart, patient and disciplined approach to the world.

Higher education cannot be a luxury reserved just for a privileged few. It is an economic necessity for every family. And every family should be able to afford it.

The wort terrorist attack in American history also brought out the best in our country...We are United as Americans.

Ultimately, if you think about all the youth that everybody has mentioned here in Africa, if everybody is raising living standards to the point where everybody has got a car and everybody has got air conditioning, and everybody has got a big house, well, the planet will boil over - unless we find new ways of producing energy.

I want to make sure that we, as a nation, stay unified because that's how we're going to achieve our missions.