65. Stabilita huc usque talium creaturarum possibilitate, ad earumdem existentiam probandam descendamus. Supposita tot historiarum veritate de coitu hujusmodi Incuborum et Succuborum cum hominibus et brutis, ita ut hoc negare impudentia videatur, ut ait D. Augustinus quem dedimus supra nº 10., ita arguo: Ubi reperitur propria passio sensus, ibidem necessario reperitur sensus ipse, cum juxta principia philosophica propria passio fluat a natura, sive ubi reperiuntur actiones, seu operationes sensus, ibidem reperitur sensus ipse, cum operationes et actiones sint a forma. Atqui in hujusmodi Incubis aut Succubis, sunt actiones, operationes, ac propriæ passiones, quæ sunt a sensibus; ergo in iisdem reperitur sensus: sed sensus reperiri nequit nisi adsint organa composita, nempe ex potentia animæ et determinata parte corporis: ergo in iisdem reperiuntur corpus et anima; erunt igitur animalia: sed etiam in ipsis et ab ipsis sunt actiones, et operationes animæ rationalis: ergo eorum anima erit rationalis: et ita de primo ad ultimum tales Incubi sunt animalia rationalia. 65. Now that we have proved that those creatures are possible, let us go a step further, and show that they exist. Taking for granted the truth of the recitals concerning the intercourse of Incubi and Succubi with men and beasts, recitals so numerous that it would look like impudence to deny the fact, as is said by St Austin, whose testimony is given above (Nr 10), I argue: Where the peculiar passion of the sense is found, there also, of necessity, is the sense itself; for, according to the principles of philosophy, the peculiar passion flows from nature, that is to say; that, where the acts and operations of the sense are found, there also is the sense, the operations and acts being but its external form. Now, those Incubi and Succubi present acts, operations, peculiar passions, which spring from the senses; they are therefore endowed with senses. But senses cannot exist without concomitant composite organs, without a combination of soul and body. Incubi and Succubi have therefore body and soul, and, consequentially, are animals; but their acts and operations are also those of a rational soul; their soul is therefore rational; and thus, from first to last, they are rational animals.