3. Therefore, intercourse with the Demon, whether Incubus or Succubus (which is, properly speaking, _Demoniality_), differs in kind from Bestiality, and does not in connexion with it form one very particular species, as Cajetanus wrongly gives it; for, whatever may have said to the contrary some Ancients, and later Caramuel in his _Fundamental Theology_, unnatural sins differ from each other most distinctly. Such at least is the general doctrine, and the contrary opinion has been condemned by Alexander VII: first, because each of those sins carries with itself its peculiar and distinct disgrace, repugnant to chastity and to human generation; secondly, because the commission thereof entails each time the sacrifice of some good by its nature attached to the institution of the venereal act, the normal end of which is human generation; lastly, because they each have a different motive which in itself is sufficient to bring about, in divers ways, the deprivation of the same good, as has been clearly shown by Fillucius, Crespinus and Caramuel. 4. Ex his autem infertur, quod etiam Dæmonialitas specie differt a Bestialitate: singula enim ipsarum peculiarem et distinctam turpitudinem, castitati ac humanæ generationi repugnantem, involvit; siquidem Bestialitas est copula cum bruto vivente, ac sensibus et motu proprio prædito: Dæmonialitas autem est commixtio cum cadavere (stando in sententia communi, quam infra examinabimus), nec sensum, nec motum vitalem habente; et per accidens est, quod a Dæmone moveatur. Quod si immunditia commissa cum brutali cadavere, vel humano, differt specie a Sodomia et Bestialitate, ab ista differt pariter specie etiam =Dæmonialitas=, in qua, juxta communem sententiam, homo cum cadavere concumbit accidentaliter moto. 4. It follows that Demoniality differs in kind from Bestiality, for each has its peculiar and distinct disgrace, repugnant to chastity and human generation. Bestiality is connexion with a living beast, endowed with its own peculiar senses and impulses; Demoniality, on the contrary, is copulation with a corpse (according at least to the general doctrine which shall be considered hereafter), a senseless and motionless corpse which is but accidentally moved through the power of the Demon. Now, if fornication with the corpse of a man, a woman, or a beast differs in kind from Sodomy and Bestiality, there is the same difference with regard to _Demoniality_, which, according to general opinion, is the intercourse of man with a corpse accidentally set in motion.