In late Renaissance medicine, the example of digestion was frequently invoked to prove the elemental composition of the human body. Food was considered as being decomposed in its first elements by the stomach, and digested into a thick juice, which was assimilated by the liver and the body parts. Such a process points to the structure of the human body into four elements that are transformed into different types of humors during several stages of “concoction”. This chapter examines the Galenic (...) interpretation of digestion expounded by the French physician Jean Fernel (1497–1558) in his Physiologia (1567). In this treatise, Fernel states the body composition into elemental portions, while stressing the role of the “innate heat” as the physiological counterpart of the body’s essence or “substantial form”. He applies this view in his account of digestion, where he states that the conversion of food follows the rule of “mixture”. This chapter aims to explore how Fernel applies his interpretation of elements and innate heat to the process of digestion, as well as his sources in Galen’s De facultatibus naturalibus, Avicenna’s Canon and Aristotle’s Meteorologica. It first examines the role of the natural soul and its “nourishing” faculties in nutrition as a physiological function. It then considers the role of elements, humors and innate heat during the “concoction” of food in the stomach, liver and veins. (shrink)

For Henry More, witchcraft served as an empirical confirmation of the existence of immaterial substances. Yet while he takes great care to make his reports as trustworthy as possible and argues against the claim that the effects of witchcraft are only the illusions of people suffering from melancholy, he almost completely ignores the possibility that such effects may be caused by natural magic. In More’s natural philosophical writings, discussions of magic are very much downplayed, as well. This may seem surprising, (...) as a crucial component of More’s metaphysical system is his doctrine of the Spirit of Nature, a sort of world-soul whose action is nonmechanical, vital, and magical. The essay argues that this deeply ambivalent approach to natural magic is due to the fact that More uses traditional magical notions to supplement the shortcomings of mechanicism and at the same time tries to divorce these notions from the potentially problematic background from which they originated. In the end, the essay suggests, More’s ambivalence toward magic is only one manifestation of a much deeper problem wherein he adopts an immanentist position while trying to avoid its more problematic, potentially pantheistic, consequences. (shrink)

In his embryological treatise De plastica seminis facultate , Jacob Schegk , professor of philosophy and medicine at the University of Tübingen, developed, through a unique interpretation of the Aristotelian embryology, a theory of the "plastic faculty" , whose origin lay in the Galenic idea of the formative power. The present study analyses the precise nature of Schegk's theory, by setting it in its historical and intellectual context. It will also discuss the hitherto unappreciated Neoplatonic dimension of Schegk's notion of (...) the soul's vehicle. (shrink)

In the faculty of arts at the University of Padua in the years around 1600 professors debated the reliability of astrology, the existence of occult celestial influences, and the idea that celestial heat is present in living bodies. From the 1570s to the 1620s many professors in the faculty of arts pushed back against astrology and Jean Fernel's theories surrounding astral body. Girolamo Mercuriale, Alessandro Massaria and Eustachio Rudio thought that some forms of astral causation and Fernel's ideas were incompatible (...) with their observations of disease, Aristotle's philosophy and Hippocratic theories. Later, Santorio Santorio and Cesare Cremonini, who were allied to the political circle of Paolo Sarpi, polemicized against astrology. Their writings show that at Padua medical theory was linked to Aristotelian cosmology, which emphasized the incommensurability between celestial and terrestrial elements. Their rejection of astrology, however, did not lead to the complete marginalization of astrology at Padua. By the middle of the 1620s, as the political climate changed in Venice, the University of Padua hired professors who promoted astrology and Fernel's theories about the celestial nature of innate heat. The diversity of opinions about astrology reflected Venice's divided politics and multiple approaches to interpreting Aristotle and other authorities. (shrink)

ABSTRACTHardly a few people manage to escape big fears without dying [of them]; not so with pains. This statement captures Cardano's understanding of the difference between mental and physical pain. As a physician with a lifelong history of anxiety and alienation, Cardano inquired ceaselessly into the nature of the delicate interaction between the two kinds of pain. It was his belief that the subtle nature of mental suffering makes it difficult, if not impossible, to identify, name, and give a meaning (...) to those powerful emotions which cause our inner turmoil. Unable to be ‘named’ and ‘signified’, mental pain eludes understanding and thereby deprives the mind of its identity as a locus of sense. In the experience of physical pain, conversely, the mind can easily decode the signs in the body, keeping its mastery over sense-perception, the imagination, and desire. For this reason, Cardano believed, many people afflicted by sorrow and grief find solace in physical pain, which in its purest form is even able to enhance our cognitive potential. (shrink)

Jean Fernel and William Harvey were leading medical practitioners of their respective generations, but they also worked in natural philosophy, and, in particular, were well known for their works on...

Se aborda aquí la transformación de la idea de una primigenia identidad entre palabras y cosas, lenguaje y mundo, que tuvo lugar en Venecia en el s. XVI.

De generationewas the last of the three works published by William Harvey during his lifetime. Although this work on generation was most ambitious, being the product of prolonged and detailed researches, it has received relatively little attention from modern writers. It is generally felt that this work, like William Gilbert'sDe mundo, departs significantly from the more pronounced empirical approach to science which characterized Harvey's first publication,De motu cordis. De generationeshows that Harvey regarded reference to teleological and vitalistic principles as necessary (...) for the solution of crucial problems in biology. In this respect he differed from his contemporaries, the iatrochemical and iatromechanical physiologists, whose non-teleological approach seems, at least superficially, to be in sympathy with the modern biological tradition. The structure and content ofDe generationeare so evidently determined by Aristotle's biological writings, that the work is used to illustrate Harvey's failure to emancipate himself from the philosophical encumbrances of antiquity. (shrink)