You never know in retrospect whether you did or didn't do exactly the right thing, stay-at-home mothers, gone-away mothers, all ofus worry whether we should have done something differently than we did.

In fact, [Donald's Trump] cavalier attitude about nuclear weapons is so deeply troubling.

I don't think that strategically it is smart to begin cutting your options when the other side does not move at all.

Climate change is directly related to the growth of terrorism. And if we do not get our act together and listen to what the scientists say, you're going to see countries all over the world struggling over limited amounts of water, limited amounts of land to grow their crops ask you're going to see all kinds of international conflict.

Acting alone, minorities can never achieve the majorities necessary for political change.

You cannot have development in today's world without partnering with the private sector.

There's the continuing challenges of racism, of sexism, of discrimination against the LGBT community, of the way that we treat people as opposed to how we want to be treated.