J.R. Johnson

In a broader sense, all science fiction prepares young people to live and survive in a world of ever-continuing change by teaching them early that the world does change.… In a more specific sense, science fiction preaches the need for freedom of the mind and the desirability of knowledge; it teaches that prizes go to those who study, who learn, who soak up the difficult fields of knowledge such as mathematics and engineering and biology. And so they do! The prizes of this universe go only to those able and equipped to reach out for them. In short, science fiction is preparing our youngsters to be mature citizens of the galaxy… as indeed they will have to be.

— Robert A. Heinlein (in “Turning Points: Essays on the Art of Science Fiction” by Damon Knight, ed., pp. 26-27)