The Singing Bell:

Louis Peyton never discussed publicly the methods by which he had bested the police of Earth a dozen duels of wits and bluff, with the psychoprobe always waiting and always foiled.

There is a tendency for many people who don't know any better to classify science fiction as just one more member of the group of specialized literatures that include mysteries, westerns, adventures, sport stories, love stories, and so on.

--Introduction