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

Fred Saberhagen was alive when born. He means to continue.

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

I have some good stories yet to tell.

I wrote speculative fiction because I loved to read it, and thought I could do better than some of the people who were getting published.

Research is of considerable importance in certain fields, such as science and history.

The Swords were still interesting but by then a cast of characters had started to appear and go on from book to book, and other things about the world began to feel constricting. And there were other things I wanted to do, so I closed the series up and stopped it.