At each stage...entirely new laws, concepts and generalizations are necessary, requiring inspiration and creativity to just as great a degree as in the previous one.

We live with our archetypes, but can we live in them?

What five books would I like to be remembered for? Well... Tau Zero, I like that one especially. It was somewhat of a tour de force, and I think it got across what I was trying for.

Anybody can find infinite Mandelbrot figures in his navel.

The fish that first ventured ashore had considerable practical problems.

If we knew exactly what to expect throughout the Solar System, we would have no reason to explore it.

I wrote the first book, Harvest of Stars, and as I was writing it, I saw that certain implications had barely been touched on... It's perfectly obvious that two completely revolutionary things are going on, with cybernetics, and biological science.