The best judge of whether or not a country is going to develop is how it treats its women. If it's educating its girls, if women have equal rights, that country is going to move forward. But if women are oppressed and abused and illiterate, then they're going to fall behind.

No deal means a greater chance of more war in the Middle East.

There's one issue that will define the contours of this century more dramatically than any other, and that is the urgent and growing threat of a changing climate.

One of the things you discover about being president is that there are all these rules and norms and laws and you got to pay attention to them.

The Middle East is obviously an issue that has plagued the region for centuries.

What is required of us now is a new era of responsibility - a recognition, on the part of every American, that we have duties to ourselves, our nation, and the world, duties that we do not grudgingly accept but rather seize gladly, firm in the knowledge that there is nothing so satisfying to the spirit, so defining of our character, than giving our all to a difficult task. This is the price and the promise of citizenship.

What makes America exceptional are the bonds that hold together the most diverse nation on earth.