And what we know, or think we know, about the universe of space and time is changing very quickly.

I doubt I'll ever do another book collaboration; I've been spoiled. Roger and I both happened to move to New Mexico at about the same time, when we each had a family of young kids to raise. Socializing seemed to lead naturally to working together.

Probably all the books I've ever written have been efforts to define the boundaries of humanity.

At this stage, my chief professional goal is simply to keep on writing and making a living at it.

Life is all about the friendship and the love and the music. It sounds silly, but it is. I want to have that experience as much as I can as an adult, not as a kid doing something that people are telling her she has to do. If anyone gets in my way, I'm going to get them out of my way.

All of the people in my life whom I consider to be close friends or colleagues are good thinkers.

There's a feeling among white Americans that there's no such thing as racial harmony, no such thing as a positive, productive relationship with people of color.

I have been with some great organizations, crossed paths with special people, and made numerous lasting relationships.