I find science so much more fascinating than science fiction. It also has the advantage of being true.

Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.

The open road still softly calls, like a nearly forgotten song of childhood

One of the greatest gifts adults can give - to their offspring and to their society - is to read to children.

Preserve and cherish the pale blue dot, the only home we've ever known.

A tiny blue dot set in a sunbeam. Here it is. That's where we live. That's home. We humans are one species and this is our world. It is our responsibility to cherish it. Of all the worlds in our solar system, the only one so far as we know, graced by life.

Much of human history can, I think, be described as a gradual and sometimes painful liberation from provincialism, the emerging awareness that there is more to the world than was generally believed by our ancestors.