I'm not a scientist, I was not a good science student, I felt effectively alienated from science throughout my young life, and it was only when I became an adult that I began to really appreciate from a completely different angle the power of science.

When you're advancing a frontier it stimulates creativity to find solutions.

I'm not writing for myself. I'm writing as an educator, I'm writing to stimulate others.

The greatest of people that have ever been in society, they were never versions of someone else. They were themselves.

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.

As religion is now practiced and science is now practiced, there is no intersection between the two. That is for certain. And it’s not for want of trying. Over the centuries, many people—theologians as well scientists - have tried to explore points of intersection. And anytime anyone has declared that harmony has risen up, it is the consequence of religion acquiescing to scientific discovery. In every single case.

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.