Lux sive qualitas. Incorporeità, estensione e natura della luce nell'aristotelismo iberico e italiano di primo Seicento

This article addresses the Aristotelian debate in the 17th century on the incorporeality of light and its extension, focusing especially on the Iberian and Italian contexts. The aim of the essay is to show that, while late Aristotelianism unitedly rejected light's corporeity, many differences arose regarding the way in which this incorporeality should be understood. Relevant perspectives in all of their discussions were Scotus' teaching of the intentional nature of light, and the Neoplatonics' claim of its metaphysical provenance. In the Iberian environment, Jesuit scholars/theologians (the school of Toledo, the Conimbricenses, Francisco Sua?rez, and Antonio Rubio) were especially characterized by their attempt to save Aristotle's original explanation in De Anima, although theoretical discrepancies on many significant points divide them. Italian intellectuals such as Zabarella, Dandini, Lagalla and Liceti were instead more willing to seek a reconciliation between Aristotle's statement and the explanation of light posited by Scotus and the Neoplatonists, and more receptive to the need for a new theory of matter.