
Boston Book Review interview by Harvey Blume http://www.dorislessing.org/boston.html (February 1998)
The Guardian, London (7 November 1988)
Boston Book Review interview by Harvey Blume http://www.dorislessing.org/boston.html (February 1998)
“Science fiction is for real, space opera is for fun.”
"My Own View" in The Encyclopedia of Science Fiction (1978) edited by Robert Holdstock; later published in Asimov on Science Fiction (1981)
General sources
"Fictions of Every Kind" in Books and Bookmen (February 1971)
“Science Fiction has rivets, fantasy has trees.”
Source: Vehicles: Experiments in Synthetic Psychology (1984), p. 1
"How To Build A Universe That Doesn't Fall Apart Two Days Later" (1978)
“Science Fiction is the fiction of ideas.”
The Paris Review interview (2010)
Context: Science Fiction is the fiction of ideas. Ideas excite me, and as soon as I get excited, the adrenaline gets going and the next thing I know I’m borrowing energy from the ideas themselves. Science fiction is any idea that occurs in the head and doesn’t exist yet, but soon will, and will change everything for everybody, and nothing will ever be the same again. As soon as you have an idea that changes some small part of the world you are writing science fiction. It is always the art of the possible, never the impossible.