The best Science Fiction is as good as the best fiction in any field.
Fiction is very important to me. It's what I do, it's what I do with my life.
The vast majority of fiction is written to markets and to this damnable business we have nowadays of categorizing everything.
Corollary 1: The existence of immense quantities of trash in science fiction is admitted and it is regrettable; but it is no more unnatural than the existence of trash anywhere.
Ninety percent of SF [science fiction] is crud, but then, ninety percent of everything is crud.
A science fiction story is a story with a human problem, and a human solution, that would not have happened at all without its scientific content.
I wrote the very first stories in science fiction which dealt with homosexuality, The World Well Lost and Affair With a Green Monkey.
Science fiction, outside of poetry, is the only literary field which has no limits, no parameters whatsoever. You can go not only into the future, but into that wonderful place called other, which is simply another universe, another planet, another species.