Materialism as a doctrine is, of course, a part of the history of philosophy, even if it was often a polemical construct, and it took until the 18th century for philosophers to be willing to call themselves materialists. Difficulties also have been pointed out in terms of “continuity,” i.e., does what Democritus, Lucretius, Hobbes and Diderot have to say about matter, the body and the soul all belong in one discursive and conceptual frame? Interestingly, materialism is also a classic figure (...) in the history of medicine, often intersecting with philosophical considerations. Notably, the question of body-soul relations. This is apparent in Galen’s treatise on body and soul and then much more massively in the early modern period (with reference to Galen, but also Lucretius, and Aristotelian naturalism). In the following essay I reflect on the exact nature of early modern medical materialism, its philosophical status and contribution. (shrink)

ArgumentEighteenth-century Montpellerian vitalism and contemporaneous French “vitalist” materialism, exemplified by the medical and biological materialism of La Mettrie and Diderot, differ in some essential aspects from some later forms of vitalism that tended to postulate immaterial vital principles or forces. This article examines the arguments defending the existence of vital properties in living organisms presented in the context of eighteenth-century French materialism. These arguments had recourse to technological metaphors and analogies, mainly clockworks, in order to claim that just as machines (...) can have functional properties which its parts do not possess, so living organisms can, as material entities, also have organic or vital properties which its material parts do not possess. Such arguments, with the help of a healthy dose of epistemological scepticism, tend to strike a balance between two positions concerning the ontology of life which we now tend to label “vitalism” and “emergentism.” Although there is nothing inconsistent in viewing vital properties as emergent, some ambiguity results if one does not draw a clear distinction between properties and functions. The philosophical problems related to these ambiguities are revealed in Diderot's apparent hesitation concerning sentience as “a general property of matter or the product of organization.”. (shrink)