It was he who drafted the model legal code for the United Nations when it was founded.
Pioneering work in both sexology and jurisprudence.
Rene Guyon was born at Sedan, France, in 1876. He matriculated at the University of Paris, which in 1902 conferred upon him the degree of Doctor of Law. His first publications were treatises dealing with legal problems in France. After collaborating on two novels, he fathered a book of poems, "The Pagan Easter". Between 1924 and 1931 he published three scholarly volumes: "The Metaphysics of Materialism", "The Materialistic Philosophy of Biology", and "The Materialistic Philosophy of Psychology". These were followed by "The Wide Gate", a collective title for four books, "Osiris", "Dionysus", "Prometheus", and "Eros", which challenge and revaluate many established traditions of mankind. While these were being written, studies continued for his most conspicuous work on civilization and sex: the "Studies in Sexual Ethics" ("Etude ethique d'sexuelle").
This 10 volume set was originally published in France in the early 1930s. To the best of my knowledge, only the first two volumes have been translated & published in English. The 10 volumes are:
These first two volumes establish the principles of sexual legitimacy and of sexual freedom. In the following seven volumes Guyon proceeds to apply these principles to the major sexual problems of civilization.
VII complements "The Persecution of Sexual Acts. It deals with procurers, pimps, 'white slavers', and so on, whom Guyon calls 'intermediaries'. As the only solution of the problem involved, he suggests a complete revision of the prevailing legal and social approach. Other chapters discuss 'The Child and Sexual Acts', 'The Sexual Slavery of Minors', and 'The Bluff of Pornography'. In a section on 'The Psycho-Physiology of the So-Called Venereal Diseases', the author recommends their reclassification (syphilis being not a venereal but an infectious disease). He objects vigorously to the use of venereal disease as a 'weapon of the puritans.'
R. Guyon travelled throughout the world, spending time in Europe, North Africa, the Sudan, Siberia, China, Indo-China, Malaysia, and the Indonesian Archipelago.
He went to Siam as a member of the Commission of Codification (for drafting new legal codes), and eventually became its chief. After completing this task (1919), he remained in Siam as legislative advisor to the Ministry of Justice and judge in the Supreme Court (until, I presume, his death).
(excerpt from the preface of the 1948 Alfred Knopf edition of "The Ethics of Sexual Acts")