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.

Photography is a form of time travel.

You can't have people making decisions about the future of the world who are scientifically illiterate. That's a recipe for disaster. And I don't mean just whether a politician is scientifically literate, but people who vote politicians into office.

The history of exploration across nations and across time is not one where nations said, 'Let's explore because it's fun.' It was, 'Let's explore so that we can claim lands for our country, so that we can open up new trade routes; let's explore so we can become more powerful.'

After 50 years of television, there's no other conclusion the aliens could draw, but that most humans are neurotic, death-hungry, dysfunctional idiots.

Imagine a world in which we are all enlightened by objective truths rather than offended by them.

Our five senses are faulty data-taking devices, and they need help.