If we choose only to expose ourselves to opinions and viewpoints that are in line to our own, we become more polarized, more set in our own ways. It will only reinforce and deepen the political divides in our country. But if we choose to actively seek out information that challenges our assumptions and beliefs, perhaps we can begin to understand where the people who disagree with us are coming from.

The world is less violent than it has ever been.

We can make sure that people who don't have health insurance can buy into an insurance pool that gives them better bargaining power.

The problem is that, over time, big pieces of business that have to get done without leadership from Washington, don't get done.

The truth of the matter is that the problem of police shootings and reactions in the community.

We remember the specter of sectarian violence -- al Qaeda's attacks on mosques and pilgrims, militias that carried out campaigns of intimidation and campaigns of assassination. And in the face of ancient divisions, you stood firm to help those Iraqis who put their faith in the future.

We need to internalize this idea of excellence. Not many folks spend a lot of time trying to be excellent.