Throughout their life Ibn Sînâ and Descartes firmly believed that the soul or mind of a human being was essentially incorporeal. In his ‘On the Soul’ (De anima), the psychological part of his vast...

Descartes’ metaphysics lays the foundation for the special sciences, and the notion of consciousness (conscientia) belongs to metaphysics rather than to psychology. I argue that as a metaphysical notion, ‘consciousness’ refers to an epistemic version of moral conscience. As a consequence, the activity on which science is based turns out to be conscientious thought. The consciousness that makes science possible is a double awareness: the awareness of what one is thinking, of what one should be doing, and of the possibility (...) of a gap between the two. (shrink)

For Descartes, our minds are not natural causes because they are not themselves objects; rather, they are the activities that identify objects. In short, they are our challenges to the natural order of things, both in how we adapt to novel situations (as exhibited in what has been called the “rational action test”) and in how we respond in unexpected yet appropriate ways to linguistic cues (in the “language test”). Because these tests reveal ways in which our minds (as “pure,” (...) creative, willful, and immortal substances) introduce novelty into nature, we are not determined (as animals are) by other objects. That is, our rational or linguistic activities are challenges to the order of nature precisely because they are not part of, but rather constitute, nature. Accordingly, “real” (creative) speech is logically prior to finite differentiations and is not limited by laws of nature that constrain animal behavior. (shrink)

Some people like to think that the modern discipline of philosophy has little if anything to learn from the history of the subject, but in reality the philosophical inquiries of each generation always take shape against the background of an implicit dialogue with the actual or imagined ideas of past thinkers. Many of our current debates on the relationship between thought and language bear the imprint of what the ‘father of modern philosophy’ said, or is supposed to have said.

En este texto presento algunos aspectos de la concepción cartesiana de la consciencia siguiendo las modélicas investigaciones de B. Hennig. Esta presenta conexiones interesantes con algunos aspectos de la concepción kantiana y muestra en qué medida puede ser conectada tanto la filosofía de Descartes como la de Kant con un proyecto opuesto al de la “filosofía de la consciencia”, ligado más bien a la tradición de empleo habitual de este término antes de la así llamada “modernidad”. Se revelará aquí, entonces, (...) un punto de conexión inesperado entre estos dos filósofos, pues la conexión antedicha habrá de buscarse en la filosofía práctica de Kant. (shrink)

Descartes understood the subject matter of physics (or natural philosophy) to encompass the whole of nature, including living things. It therefore comprised not only nonvital phenomena, including those we would now denominate as physical, chemical, minerological, magnetic, and atmospheric; it also extended to the world of plants and animals, including the human animal (with the exception of those aspects of the human mind that Descartes assigned to solely to thinking substance: pure intellect and will). Descartes wrote extensively on physiology and (...) on the physiology and psychology of the senses. This chapter examines the notions of *physiology* and *psychology* in medical and natural philosophical works of Descartes' day; follows his efforts to bring physiology into his mechanistic idiom; considers the relation between physiology of the animal machine and psychological functions that yield functionally appropriate behavior; goes into his physiology and psychology of vision; and elaborates the tension in Descartes' works between his metaphysically supported micro-corpuscularism and his discussion of the animal machine as an organic unity comprising various functionally and teleologically characterized systems. The chapter draws on Descartes' works in both metaphysics and natural philosophy, including his Treatise on Man (originally published as L'Homme, 1664). (shrink)