Our democracy is threatened whenever we take it for granted.

The friendship that we established early on in our marriage ... that carries you through tough times. That and a good sense of humor.

Because this is a country where everyone deserves the same freedom and opportunities to fulfill their dreams.

This is a core principle of my presidency -- if you threaten America, you will find no safe haven.

We will convey our deep appreciation for the Islamic faith, which has done so much over the centuries to shape the world -- including in my own country.

Instead of giving in to cynicism and division, let's move forward with the confidence and optimism and unity that define us as a people.

Reading is the gateway skill that makes all other learning possible.

Gas tax holiday is a classic Washington gimmick.

What we have done, I think, is build a model from a lot of hard lessons in Afghanistan and Iraq but in other places around the world, where we are working with them in an advisory capacity.

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

We have to acknowledge the progress we made, but understand that we still have a long way to go. That things are better, but still not good enough.

Mandela's commitment to democracy was ratified not only by his election, but by his willingness to step down from power.

This is a time of great change in the world but America's always been a pillar of strength and a beacon of hope to peoples around the globe and that's what it must continue to be.

There's no reason why Americans should die when Afghans are perfectly capable of defending their own country.

Progress does not compel us to settle centuries-long debates about the role of government for all time, but it does require us to act in our time.

History doesn't always move in a straight line. Sometimes it zigs and zags.

The path towards sustainable energy sources will be long and sometimes difficult. But America cannot resist this transition, we must lead it.

The problem is, that we've got a position, often times by the NRA that says any regulation whatsoever is the camel's nose under the tent. And that, I think, is not where the American people are at.

Three months is a lifetime in politics.

I have said repeatedly that America doesn't torture and I'm going to make sure that we don't torture. Those are part and parcel an effort to regain America's moral stature in the world.