Dreams about the future are always filled with gadgets.

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.

Space enthusiasts are the most susceptible demographic to delusion that I have ever seen.

Science literacy is the artery through which the solutions of tomorrow's problems flow.

The limits on your enlightenment come not from the age you stopped going to school but from the age you stopped being curious.

Any astrophysicist does not feel small looking up at the universe; we feel large.

As they are currently practiced, there is no common ground between science and religion... Although just as in hostage negotiations, it's probably best to keep both sides talking to each other.