But new in what way? Asimov was a scientist, and approached every field of human knowledge in a scientific manner--assimilating data, combining it in new and startling ways, thinking through the implications of each new idea. I was no scientist, and unlikely ever to be one, at least not a real scientist--not a physicist, not a chemist, not a biologist, not even an engineer. I had no gift for mathematics and no great love for it, either. Though I relished the study of logic and languages, and virtually inhaled histories and biographies, it never occurred to me at the time that these were just as valid sources of science fiction stories as astronomy or quantum mechanics'

How, then, could I possibly conic up with a science fiction idea? What. did I actually know about anything?

At that time my older brother Bill was in the army, stationed at Fort Douglas in Salt Lake City; he was nursing a hip-to-heel cast from a bike-riding accident, however, and came home on weekends. It was then that he had met his future wife, Laura Dene Low, while attending a church meeting on the BYU campus; and it was Laura who gave me Foundation to read. Perhaps, then, it was natural for my thoughts to turn to things military.

To me, though, the military didn't mean the Vietnam War, which was then nearing its peak of American involvement. I had no experience of that, except for Bill's stories of the miserable life in basic training, the humiliation of officer's candidate school, and his lonely but in many ways successful life as a noncom in Korea. Far more deeply rooted in my mind was my experience, five or six years earlier, of reading Bruce Catton's three-volume Army of the Potomac. I remembered so well the stories of the commanders in that war--the struggle to find a Union general capable of using McClellan's magnificent army to defeat Lee and Jackson and Stuart, and then, finally, Grant, who brought death to far too many of his soldiers, but also made their deaths mean something, by grinding away at Lee, keeping him from dancing and maneuvering out of reach.