The StarTalks - while kids can watch them, they're actually targeted at adults. Because adults outnumber kids five to one, and adults vote, and adults wield resources, and adults are heads of agencies. So if we're going to affect policy, or affect attitudes, for me, the adults have always been the target population.

It's quite literally true that we are star dust, in the highest exalted way one can use that phrase. ...I bask in the majesty of the cosmos. I use words, compose sentences that sound like the sentences I hear out of people that had revelation of Jesus, who go on their pilgrimages to Mecca.

I love being wrong because that means in that instant, I learned something new that day.

The people talking on their cell phone and following GPS instructions to where grandma's house is saying I don't need space - excuse me, that's how you know where grandma lives, and when to make the left turn.

The persistent failures of controlled, double-blind experiments to support the claims of parapsychology suggest that what's going on is nonsense rather than sixth sense.

You have the illusion of free will, but, in fact, that illusion comes about because you don't know the future. Because you are a prisoner of the present, forever locked in transition, between the past and the future.

The most creative people are motivated by the grandest of problems that are presented before them.