Self criticism must be my guide to action, and the first rule for its employment is that in itself it is not a virtue, only a procedure.
Kingsley Amis[Science fiction is] that class of prose narrative treating of a situation that could not arise in the world we know, but which is hypothesised on the basis of some innovation in science or technology, or pseudo-science or pseudo-technology, whether human or extra-terrestrial in origin. It is distinguished from pure fantasy by its need to achieve verisimilitude and win the 'willing suspension of disbelief' through scientific plausibility.
Kingsley Amis