If you are that person, you are more likely to believe that God cured you, this invisible force, creator of the universe, cured you, than that you had three idiotic doctors diagnose you. ... I taught physics to pre-med students who became doctors. Not all of them are smart, I assure you.

Photons are accurately and legitimately described as waves and particles at the same time. They are genuine wavicles.

The molecules that comprise our body are traceable to the crucibles of the centers of stars.These atoms and molecules are in us because, in fact, the universe is in us. And, we are not only figuratively, but literally, stardust.

There are two kinds of comments that I get. One is, oh, you're such a natural up there, and the other one is, you're working hard up there. And the ones who say I'm working hard are teachers, they're the educators; they're the people who are the performers. It's a huge investment of my psycho-emotional energy to pull that off and to make it look smooth.

Does the full moon affect people's behavior, you ask? Yup. It makes people think the full moon affects people's behavior.

The value of the space program is beyond science, it's beyond military; it's a cultural shift in how we think of our place in the universe.

Intelligent design is a philosophy of ignorance.