We should remember that just as a positive outlook on life can promote good health, so can everyday acts of kindness.

While there are few problems in today's world that the United States can solve alone, there are even fewer that can be solved without the United States.

Donald Trump always is looking for some conspiracy.

Everything I did as secretary of state was in furtherance of America's interests and our values.

You know, Barack Obama is a man of great dignity. And I could tell how much it bothered him and annoyed him that this [birther lie] was being touted and used against him.

If you see violence, condemn it.

Recently in Washington, unfortunately, we have seen examples of the wrong kind of leadership -- when politicians choose scorched earth over common ground, when they operate in what I call the 'evidence-free zone,' with ideology trumping everything else.