There is no example of someone reading their scripture and saying, 'I have a prediction about the world that no one knows yet, because this gave me insight. Let's go test that prediction,' and have the prediction be correct.

There is always a place I can take someone's curiosity and land where they end up enlightened when we're done. That's my challenge as an educator. No one is dumb who is curious. The people who don't ask questions remain clueless throughout their lives.

In all civilizations we've studied, all cultures that we know of across the Earth and across time have invested some kind of attempt to understanding where where, where they come from, and where they are going.

Let's say intelligence is your ability to compose poetry, symphonies, do art, math and science. Chimps can't do any of that, yet we share 99 percent DNA. Everything that we are, that distinguishes us from chimps, emerges from that one-percent difference.

The Founders who crafted our Constitution and Bill of Rights were careful to draft a Constitution of limited powers - one that would protect Americans' liberty at all times - both in war, and in peace.

We have judicial system in Sudan. Anyone who committed a war crime, anti-human crime, or any other crime will be locked up.

Anyone who's traveled with me to Afghanistan knows why I love this book: 'War,' by Sebastian Junger.

The whole art of war consists of guessing at what is on the other side of the hill.