What I’ve realized is that life doesn’t count for much unless you’re willing to do your small part to leave our children — all of our children — a better world. Any fool can have a child. That doesn’t make you a father. It’s the courage to raise a child that makes you a father.

What is the empathy deficit? The inability of people to stand in other folks shoes. It's hard to empathize with people who have different values than you

Fear, uncertainty and discomfort are your compasses toward growth. If you run you stand a chance of losing, but if you don't run you've already lost.

ISIS is not an organization that can destroy the United States. This is not a huge industrial power that can pose great risks to us, institutionally or in a systematic way. But they can hurt us. And they can hurt our people and our families.

I'm here with the Girardo family here in St. Louis.

Sometimes it may seem as if progress is stalled but what history of post-war Germany shows is that strength and determination and focus and adherence to the values that we care about will result in a better future for our children and our grandchildren.

There are a lot of very religious scientists around. I think the problem here is that in our school systems, and to some degree - and this is where it is relevant - with school boards around the country that are mandating curriculums and textbooks, you start seeing this weird watering down of scientific fact so that our kids are growing up in an environment - and this connects to what I was saying earlier abou the media - where everything's contested. Where nothing is true.