Maupassant is considered a father of the modern short story. Literary theorist Kornelije Kvas wrote that along "with Chekhov, Maupassant is the greatest master of the short story in world literature. He is not a naturalist like Zola; to him, physiological processes do not constitute the basis of human actions, although the influence of the environment is manifested in his prose. In many respects, Maupassant's naturalism is Schopenhauerian anthropological pessimism, as he is often harsh and merciless when it comes to depicting human nature. He owes most to Flaubert, from whom he learned to use a concise and measured style and to establish a distance towards the object of narration."[24] He delighted in clever plotting, and served as a model for Somerset Maugham and O. Henry in this respect. One of his famous short stories, "The Necklace", was imitated with a twist by Maugham ("Mr Know-All", "A String of Beads"). Henry James's "Paste" adapts another story of his with a similar title, "The Jewels".
Taking his cue from Balzac, Maupassant wrote comfortably in both the high-realist and fantastic modes; stories and novels such as "L'Héritage" and Bel-Ami aim to recreate Third Republic France in a realistic way, whereas many of the short stories (notably "Le Horla" and "Qui sait?") describe apparently supernatural phenomena.
The supernatural in Maupassant, however, is often implicitly a symptom of the protagonists' troubled minds; Maupassant was fascinated by the burgeoning discipline of psychiatry, and attended the public lectures of Jean-Martin Charcot between 1885 and 1886.[25]
