Freedom of expression must also bow to the necessity for clear communication, as many of science fiction’s failed experiments of the sixties demonstrate. Unicorn Variations (1983)
Of the three basic elements of any fiction—plot, character, and setting—it is the setting that requires extra attention in science fiction and fantasy. Frost & Fire (1989)
I think what I'm going to do is vary my output, do some straight science fiction and some straight fantasy that doesn't involve mythology, and composites.