“I have a strong feeling, having met so many of my colleagues over the years, that there is almost universally among them a love of human beings and a concern for them, a desire for closeness that, in itself, might explain why the SF [science fiction] writer chose that field rather than one of the pure sciences. SF writers are not loners ….
“There are few if any cold schizoid SF writers; when you meet a Ray Bradbury or a Ted Sturgeon or a Norman Spinrad or an A.E. van Vogh you find a warm person longing to know you, too; you are part of a family that goes back decades and into which we perpetually welcome others: There are no sterile, aseptic white smocks, no cruel or detached interactions among us. Writing SF requires a humanization of the person, or put another way, I doubt if that person would want to write SF unless he had in him these empathic needs and qualities. Too timid to demonstrate, too warm to retreat to a sterile lab and experiment on objects or animals, too excited and impatient to allow all knowledge to be confined to the limits of absolute certitude — we live in a world of what a radio SF show once called ‘possible maybes,’ and this world attracts persons who are not loners but are lonely; and between those two distinctions there is a crucial difference.”
— Philip K. Dick, from his essay “Who Is an SF Writer?”, 1974, as reprinted in The Shifting Realities of Philip K. Dick: Selected Literary and Philosophical Writings