As the world continues to change and we become more connected to each other, globalization will bring both benefits and disruptions to our lives. But… - Barack Obama

I think that I've learned some lessons over the past four years, and the most important lesson I've learned is that you can't change Washington from the inside. You can only change it from the outside. That's how I got elected and that's how the big accomplishments like health care got done – was because we mobilized the American people to speak out. That's how we were able to cut taxes for middle class families. So, something that I'd really like to concentrate on in my second term is being in a much more constant conversation with the American people, so that they can put pressure on Congress to move some of these issues forward.

But how can we in good conscience justify war before we’ve tested a diplomatic agreement that achieves our objectives; that has been agreed to by Iran; that is supported by the rest of the world; and that preserves our options if the deal falls short? How could we justify that to our troops? How could we justify that to the world or to future generations? In the end, that should be a lesson that we’ve learned from over a decade of war. On the front end, ask tough questions. Subject our own assumptions to evidence and analysis. Resist the conventional wisdom and the drumbeat of war. Worry less about being labeled weak; worry more about getting it right.

I understand why war is not popular, but I also know this: The belief that peace is desirable is rarely enough to achieve it. Peace requires responsibility. Peace entails sacrifice. That's why NATO continues to be indispensable. That's why we must strengthen U.N. and regional peacekeeping, and not leave the task to a few countries.