We are all star stuff.

Life is but a momentary glimpse of the wonder of this astonishing universe, and it is sad to see so many dreaming it away on spiritual fantasy.

[One's] inability to invalidate your hypothesis is not at all the same thing as proving it true.

All inquires carry with them some element of risk. There is no guarantee that the universe will conform to our predispositions.

Our passion for learning ... is our tool for survival.

I would love to believe that when I die I will live again, that some thinking, feeling, remembering part of me will continue.

Not all birds can fly. What separates the flyers from the walkers is the ability to take off.