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Studia Neoaristotelica:
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18 >
Issue: 2
Mário João Correia
Experience and Natural Philosophy in the Italian Renaissance:
Nicoletto Vernia and Gomes of Lisbon on the Subject-Matter of Physics
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During the fifteenth and sixteenth centuries, one of the most controversial intellectual disputes was the question of method in natural philosophy, or physics. The tensions between observational experience and geometrization, demonstration from the effects (demonstratio quia, a posteriori) and from the causes (demonstratio propter quid, a priori), and between Aristotle’s authority and new philosophical tendencies made some philosophers search for new solutions. Others criticized these new solutions and tried to show the validity of several medieval scholastic readings of Aristotle. With this article, I intend to present the role of experience in the dispute between Nicoletto Vernia’s approach to the subject-matter of physics and Gomes of Lisbon’s response to it. While Vernia holds that the subject-matter of physics is mobile body, Gomes argues it is natural substance. What is at stake is how to combine experience, definition, and demonstration to obtain a consistent scientific method. Only through the study of this kind of text and discussion can we gather a solid background to elucidate what has changed and what has been inherited from the past in the scientific shift of the seventeenth century.
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Studia Neoaristotelica:
Volume >
18 >
Issue: 2
Andrew Dennis Bassford
Essence, Effluence, and Emanation:
A Neo-Suarezian Analysis
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The subject of this essay is propria and their relation to essence. Propria, roughly characterized, are those real properties of a thing which are natural but nonessential to it, and which are said to “flow from” the thing’s essence, where this “flows from” relation is understood to designate a kind of explanatory relation. For example, it is said that Socrates’s risibility flows from his essential humanity; and it is said that salt’s solubility in water flows from the essential natures of both salt and water. The question I raise and attempt to answer in this essay is: In what sense do propria “flow from” essences? What kind of explanatory relation is this exactly? Some suggest that it is a relation of logical consequence (e.g., Kit Fine); others, of grounding (e.g., Michael Gorman); and still others, of formal causation (e.g., David Oderberg). In this essay, I reintroduce and defend a view suggested by the late scholastic Spanish philosopher and theologian Francisco Suárez, who in 1597 wrote that effluence is best understood as a very special kind of efficient causation, which we can call the relation of emanation. The thesis of this essay, then, is that propria emanate from essences. Along the way, this paper offers a new taxonomy of types of propria; it explains the significance of propria for the metaphysics and epistemology of essences; it discusses at length varieties of efficient causation (and emanation in particular); and then it offers an extensive abductive argument in favor of Suárez’s account, whereby the former accounts of effluence are critiqued, each in turn, and Suárez’s view is motivated and ultimately shown to be superior to its competitors.
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