The universe's destiny has very little to do with the near-term destiny of Earth.

I'd like - inviting aliens and have them observe what we do because so much of what we do that we take for granted will just be weird or extraordinary or just plain dumb when observed by an alien from another civilization.

When a coincidence seems amazing, that's because the human mind isn’t wired to naturally comprehend probability & statistics.

I would rather enlighten the electorate so that when it's time for them to put somebody in Congress, it will be self-evident that they will embrace the message and tools and discovery of science in a way that can transform our culture and even our civilization.

We didn't go to the moon to explore or because it was in our DNA or because we're Americans. We went because we were at war and we felt a threat.

That's the point, to get the people who wouldn't otherwise think to eavesdrop on a conversation that involves science.

We already know the limits of Einstein's theories. From the centers of black holes at the very beginning of the universe - we call these singularities - Einstein's equations fail. In fact, people have joked that's where God is dividing by zero.