It is possible for leaders or regimes to be cruel, bigoted, twisted in their world views and still make rational calculations with respect to their limits and their self-preservation.

What we should be asking is not whether we need a big government or small government, but how we can create a smarter and better government.

[We] are focused on protecting and defending our common security and upholding a rules-based order that undergirds the peace and prosperity of the region and the world. In this work, we are grateful for our continued partnership with Singapore.

And if that child should ever get the chance to travel the world and someone should ask her where is she from, we believe that she should always be able to hold her head high with pride in her voice when she answers, "I am an American." That is the course we seek. That is the change we are calling for.

When I was in Washington, I would usually get home from the Capitol at about 7:30 or 8, and I would try to write as much as possible. It was almost all in the wee hours.

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

I would say of all the things that have happened during the course of my presidency the knowledge that you have hundreds of thousands of people who have been killed, millions who have been displaced, [makes me] ask myself what might I have done differently along the course of the last five, six years.