There's no greater sign of the failure of the American educational system than the extent to which Americans are distracted by the possibility that Earth might end on December 21, 2012. It's a profound absence of awareness of the laws of physics and how nature works. So they're missing some science classes in their training in high school or in college that would empower them to understand and to judge when someone else is basically just full of it. Science is like an inoculation against charlatans who would have you believe whatever it is they tell you.

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.

In the New Testament, Thomas Jefferson cut out everything that was mystical, magical, miracle - physically with scissors - and then pasted in all that remained, such as Jesus's Sermon on the Mount.

We account for all the matter and energy that we're familiar with, measure up how much gravity it should have, it's one-sixth of the gravity that's actually operating on the universe. We call that dark matter. It really should be called dark gravity. We don't know what that is.

In modern times, if the sole measure of what’s out there flows from your five senses then a precarious life awaits you.

So when I think of, what is the meaning of life, to me, that's not an eternal unanswerable question. To me it is in arms reach of me every day.

NASA was invented as a response to Cold War steps. There are those who presumed that we went to the moon because we're explorers. We went to the moon because we were at war with the Soviet Union. And so when it became clear that they (Soviet Union) were not going to the moon, we're done with the moon.