Summary This article explores some continuities between Late Aristotelian and Cartesian embryology. In particular, it argues that there is an interesting consilience between some accounts of the role of imagination in trait acquisition in Late Aristotelian and Cartesian embryology. Evidence for this thesis is presented using the extensive biological writings of the Padua-based philosopher and physician, Fortunio Liceti (1577–1657). Like the Cartesian physiologists, Liceti believed that animal souls are material beings and that acts of imagination result in material images (...) that can be transmitted by means of medical spirits to the embryo. Moreover, while the Cartesian embryologists accepted such a view in a quite speculative way, one finds penetrating criticism of imagination theories of trait acquisition in the Late Aristotelian tradition. Evidence for this thesis is presented using the no less extensive biological writings of Liceti's contemporary, Emilio Parisano (1567–1643). In conclusion, the Late Aristotelian tradition itself provides the theoretical tools for excising immaterial formative forces from embryology and at the same time evinces a much more acute sense for the problems inherent in imagination theories of trait acquisition than the Cartesian tradition. (shrink)

This chapter considers philosophical problems concerning non-human (and sometimes human) animals, including their metaphysical, physical, and moral status, their origin, what makes them alive, their functional organization, and the basis of their sensitive and cognitive capacities. I proceed by assuming what most of Descartes’s followers and interpreters have held: that Descartes proposed that animals lack sentience, feeling, and genuinely cognitive representations of things. (Some scholars interpret Descartes differently, denying that he excluded sentience, feeling, and representation from animals, and I consider (...) the evidence for these interpretations as well.) Given that Descartes denied any sort of soul to animals, his other philosophical commitments entailed that he must explain the vital and sensitive powers of non-human animals through purely material causes. Indeed, he welcomed this task, for he was engaged in the larger project of providing purely mechanistic explanations for all natural phenomena of the material world. Animal bodies form functional unities that are adapted to environmental circumstances. In his new physics, Descartes sought to discover or hypothesize material mechanisms that would explain the physiological and behavioral capacities of animals, including how they maintain themselves by seeking food and drink, reproduce themselves, and modify their behavior to fit current circumstances. Metaphysically, his new perspective raised the problem of accounting for the functional unity of the animal body considered as a purely material construction, devoid of an active, organizing power such as the sensitive soul. Descartes’s project becomes even more challenging if we ask whence come such mechanisms that are capable of performing the functions of living things. Officially, Descartes endorsed the accepted theological orthodoxy, that God designed and created the bodily mechanisms of humans and animals. However, in his natural philosophy he set himself the task of explaining the origin of animals as part of the natural development of the universe out of an original chaotic soup of material particles. Within this naturalistic perspective, he must explain how, through purely material processes, the functionally organized bodies of living things (plants and animals) could be produced from non-living matter. Without a designing creator, how do animal bodies arise that are capable of digesting food, growing, reproducing, and performing the behaviors needed to preserve life and health? (shrink)

ABSTRACT This article studies the theory of animal seeds as purely material entities in the early seventeenth-century medical writings of Antonio Ponce Santacruz, royal physician to the Spanish king Philipp IV. Santacruz adopts the theory of the eduction of substantial forms from the potentiality of matter, according to which new kinds of causal powers can arise out of material composites of a certain complexity. Santacruz stands out among the late Aristotelian defenders of eduction theory because he applies the concept (...) of an instrument of direction developed by the medieval Avicenna commentator Gentile da Foligno and gives a novel turn to this concept by interpreting animal seeds as separate instruments. The article situates Santacruz's theory in the context of early modern debates about the concept of the eduction of forms, as well as in the context of early modern debates about the concept of separate instruments. Particular attention is paid to Santacruz's responses to the biological views of Julius Caesar Scaliger and Thomas Feyens. Santacruz's response to Scaliger turns out to be central for his explication of the eduction relation, and Santacruz's response to Feyens turns out to be central for his explication of the nature of instrumental causation. (shrink)

: In Parts of Animals II.10, 655b37-656a8, Aristotle tacitly identifies a group of animals which partake of “ living only”. This paper is an attempt to understand the nature of this group. It is argued that it is possible to make sense of this designation if we consider that some animals, which are solely endowed with the contact senses, do nothing more than mere immediate nutrition by their perceptive nature and have no other action. It is concluded that some of (...) Aristotle ’s merely living animals would be certain kinds of sponge, certain sea anemones and the ascidians among testacea. (shrink)

In arguing against the likelihood of consciousness in non-human animals, Descartes advances a slippery slope argument that if thought were attributed to any one animal, it would have to be attributed to all, which is absurd. This paper examines the foundations of Thomas Willis’ comparative neuroanatomy against the background of Descartes’ slippery slope argument against animal consciousness. Inspired by Gassendi’s ideas about the corporeal soul, Thomas Willis distinguished between neural circuitry responsible for reflex behaviour and that responsible (...) for cognitively or consciously mediated behaviour. This afforded Willis a non-arbitrary basis for distinguishing between animals with thought and consciousness and those without, a methodology which retains currency for neuroscience today. (shrink)

Although they are often grouped together in comparison with non-dualist theories, Plato's soul-body dualism, and Descartes' mind-body dualism, are fundamentally different. The doctrines examined are those of the Phaedo and the Meditations. The main difference, from which others flow, lies in Plato's acceptance and Descartes' rejection of the assumption that the soul (= intellect) is identical with what animates the body.

This entry sheds light on the use and meaning of the term "animation" in Spinoza's works. The concept of “animation” figures in the scholium to E2p13, where Spinoza discusses his demonstration of the mind-body union. He writes that “the things we have shown so far are completely general and do not pertain more to man than to other individuals, all of which, though in different degrees, are nevertheless animate [omnia, quamvis diversis gradibus, animata tamen sunt]” (E2p13s, G II/96).

This paper explores the various ways Aristotle refers to and employs “heat and cold” in his embryology. In my view, scholars are too quick to assume that references to heat and cold are references to matter or an animal’s material nature. More commonly, I argue, Aristotle refers to heat and cold as the “tools” of soul. As I understand it, Aristotle is thinking of heat and cold in many contexts as auxiliary causes by which soul activities (primarily (...) “concoction”) are carried out. This, as I argue, is what it means to call them “tools” of soul. An upshot of this investigation is the fuller picture of Aristotle’s conception of efficient causation it provides in general, and the better understanding of the efficient causal operation of an organism’s nature or soul it provides in particular. (shrink)

This paper dispels the Cartesian reading of Augustine’s treatment of mind and other minds by examining key passages from De Trinitate and De Civitate Dei. While Augustine does vigorously argue that mind is indubitable and immaterial, he disavows the fundamental thesis of the dualistic tradition: the separation of invisible spirit and visible body. The immediate self-awareness of mind includes awareness of life, that is, of animating a body. Each of us animates our own body; seeing other animated bodies enables us (...) to see other animating souls or minds. Augustine’s affirmation of animation lets us perceive that other minds are present, but Descartes’ denial of animation renders others ineluctably absent. Augustine’s soul is no ghost, because his body is no machine. (shrink)

The human soul has been believed to be immaterial and immortal element which exclusively inheres in the human body. Ukpugho ukpong (soul transplant) is an ancient meta-medical science of the Annang and Ibibio people, which is hinged on the belief that the human soul is transcendent and it exclusively inheres in proxy animal; that the soul is mortal, and can be surgically transplanted in the likeness of somatic tissue transplant. This study aimed at carrying out (...) a philosophical critique of this belief in order to determine its significance as a metaphysical concept. It also aimed at critically examining the philosophical as well as sociological discussions on the subject of ukpuho ukpong. The study was discussed on the framework of African concept of mind which holds that the soul has dual nature, namely – the Active Principle and the Quiescent Counterpart. The paper debunks the doctrines of metempsychosis and transmigration as alien to African metaphysics. The method of ordinary language analysis was employed to analyze the concepts ukpong and mbukpong. In conclusion, the paper made the following observations that: the soul is transcendent but perishable substance, the mind has dual nature, the soul does not transmigrate and the science of ukpuho ukpong is not a pseudo-metaphysical concept but was founded on African logic of dualistic mind. The paper notes that the science of ukpuho ukpong is bugged with a number of unresolved philosophical problems. Despite that the paper discovered that the science of ukpuho ukpong can contribute significantly to meta-medicine and sustainable environmental values. (shrink)

Without doubt already ‘higher’ animals which as such have phenomenal perception possess an animalic soul. The contrasting comparison of animal and robot proves to be revealing: What does the animal have that the robot does not? A key role here plays Hegel’s interpretation, which can be addressed as a phenomenology of the ‘animalic soul’. His dictum ‘Only what is living feels a lack’ refers to the principle of self-preservation which governs everything organic. Concerning higher animals this (...) too appears as the basis of the soul: Everything, which the animal perceives thus has existential sense, self-preservation-sense. At the same time it becomes clear that robot perception is not capable of a constitution of sense, but is characterized by dementia of sense. Concretely systemtheoretically regarded, the relatedness to sense of the animal subject is here interpreted as an emergence phenomenon of the system constituted by the cooperative of perception, valuation and behavior (perc-val-act-system). In this emergentist perspective, there is, as it were, the dualism of solely-physical being and of immaterial-mental being, which at the same time is a monism with regard to the physical basis alltogether. (shrink)

In early modern times it was not uncommon for thinkers to tease out from the nature of God various doctrines of substantial physical and metaphysical import. This approach was particularly fruitful in the so-called beast-machine controversy, which erupted following Descartes’ claim that animals are automata, that is, pure machines, without a spiritual, incorporeal soul. Over the course of this controversy, thinkers on both sides attempted to draw out important truths about the status of animals simply from the notion or (...) attributes of God. Automatists – led by Nicolas Malebranche and Antoine Dilly – developed six such arguments, appealing to divine justice, providence, economy, glory (twice) and wisdom, while opponents to animal automatism developed two arguments, appealing to divine wisdom and goodness. In this article I shall examine the substance of all eight of these arguments, along with their origins, patronage, and variations, and the objections they elicited from opponents, with the aim of determining their suitability for use in contemporary debates about animal sentience and consciousness, and hence their relevance for contemporary philosophers. (shrink)

This article examines some aspects of the natural philosophy of Juan Gallego de la Serna, royal physician to the Spanish kings Philip III and Philip IV. In his account of animal generation, Gallego criticizes widely accepted views: (1) the view that animal seeds are animated, and (2) the alternative view that animal seeds, even if not animated, possess active potencies sufficient for the development of animal souls. According to his view, animal seeds are purely material (...) beings. This, of course, raises the question of how living beings can arise from inanimate matter. Gallego is aware that two other thinkers who understood animal seeds as purely material beings, Duns Scotus and the Louvain-based physician Thomas Feyens, did not solve this problem. Gallego’s solution makes use of the notion of incomplete entities developed by the Spanish Jesuit Francisco Suarez. While Suarez applies this notion to soul and body in order to explain why souls have a natural tendency towards organic bodies and organic bodies have a natural tendency towards souls, Gallego applies this notion to the natural tendency of animal seeds towards each other and towards further substances in their respective environment. In his view, this natural tendency of animal seeds to incorporate further substances explains that origin of material structures complex enough to constitute an animal soul. (shrink)

This paper attempts to reconstruct the views of the Stoic Posidonius on the emotions, especially as presented by Galen’s On the Doctrines of Hippocrates and Plato. This is a well-studied area, and many views have been developed over the last few decades. It is also significant that the reliability of Galen’s account is openly at issue. Yet it is not clear that the interpretative possibilities have been fully demarcated. Here I develop Galen’s claim that Posidonius accepted a persistent, non-rational aspect (...) of the soul that he connects with the merely animal part of humans. The aim is to begin from this testimony in answering two questions: (1) How might the possession of a non-rational element of the soul operate alongside the hêgemonikon (leading-part of the soul) as a source of impulse for Posidonius. (2) How does this persistent animal aspect conform to the Stoic ontological classification found in their scala naturae? I shall argue in response to these that (a) Posidonius distinguished the merely cognitive aspects of the soul from those that are rational, and (b) that the hêgemonikon itself is not to be identified with what is rational. Accepting a persistent non-rational source of emotional impulses allows Posidonius a richer framework for explaining human affective responses and behaviours. I also briefly address Galen’s motivation for the account he offers. It is in view of Posidonius’ approach to Plato’s Timaeus that Galen’s discussion finds its most plausible interpretation. (shrink)

In Ancient Greek, different philosophical teachings agree that the distinctive characteristic of human is reason (logos, ratio). According to Platonist, Aristotelian and Epicurean views, human beings, unlike plants or animals, attain the highest good, i.e., happiness when they live under the guidance of reason without denying their irrational nature. However, Stoicism differs from these teachings with regard to the relation between the irrational and rational nature of humans. The main reason for this difference is due to the difference in Stoic (...) view regarding the nature of the soul. Contrary to Platonic, Aristotelian and Epicurist views, in the traditional Stoicism, the soul is not separable into parts, instead it has an integral structure. That is precisely why Stoic theory of emotion (pathos) differs from other theories of emotion too. While other teachings defend the view that in order to achieve happiness emotions should be simply moderated, Stoics argue that to achieve happiness, emotions must be completely eliminated. Another argument that they use to defend this view is that emotions are judgments. In this respect, Stoicism introduces a novelty both with its teachings regarding the nature of the soul and with respect to the relationship between emotion and reason. While in other philosophical views, reason and emotion are different parts of the soul that can coexist simultaneously, in Stoicism emotion and reason are two faculties of the soul that cannot be present at the same time. In other words, when the soul has the faculty of reason, it cannot have the faculty of emotion, and vice versa. In brief, the aim of this paper is to explain why the Stoics argue (based on their unique account of human soul) that in order to achieve happiness, emotions should be completely eliminated. (shrink)

This article is divided into three substantive sections. Section I delineates Aristotle’s theory of the soul as laid out in De Anima. Section II defines habeas corpus as a legal concept and demonstrates under what circumstances it should be granted. Section III applies Aristotle’s theory of the soul as a structure whereby animals could be granted habeas corpus rights.

Abū Bakr al-Rāzī (d. 925), a doctor known not only for his medical expertise but also for his notorious philosophical ideas, has not yet been given due credit for his ideas on the ethical treatment of animals. This paper explores the philosophical and theological background of his remarks on animal welfare, arguing that al-Rāzī did not (as has been claimed) see animals as possessing rational, intellectual souls like those of humans. It is also argued that al-Rāzī probably did not, (...) as is usually believed, endorse human-animal transmigration. His ethical stance does not in any case depend on shared characteristics of humans and animals, but rather on the need to imitate God’s providence and mercy. (shrink)

Many moral philosophers have criticized intensive animal farming because it can be harmful to the environment, it causes pain and misery to a large number of animals, and furthermore eating meat and animal-based products can be unhealthful. The issue of industrially farmed animals has become one of the most pressing ethical questions of our time. On the one hand, utilitarians have argued that we should become vegetarians or vegans because the practices of raising animals for food are immoral (...) since they minimize the overall happiness. Deontologists, on the other hand, have argued that the practices of raising animals for food are immoral because animals have certain rights and we have duties toward them. Some virtue ethicists remain unconvinced of deontic and consequentialist arguments against the exploitation of animals and suggest that a virtue-based approach is better equipped to show what is immoral about raising and using animals for food, and what is virtuous about ethical veganism. (shrink)

metempsychosis is the concept of the transmigration of a human or animal soul into another human, animal, plant, or even an inanimate object. The theory of metempsychosis poses a challenge to the belief in resurrection (maʿād), making it necessary to reject metempsychosis before proving maʿād. Avicenna presents two arguments against metempsychosis. The first argument, found in numerous works, rejects metempsychosis on the grounds that it requires the union of two soul s within a single body. Avicenna (...) alludes to the second argument in his Al-Isharat wa al-Tanbihat but postpones its full explanation to another unspecified work. Nasir al-Din al-Tusi, Fakhr al-Din Razi, and Qutb al-Din Razi have proposed different interpretations of this second argument. The variations in interpretation revolve around the number of implications Avicenna expressed for this modus ponendo and his reasons for rejecting them. Among these interpretations, only Qutb al-Din Razi's aligns more closely with Avicenna's original words. In the other two interpretations, there are either deficiencies or excesses compared to Avicenna's work. (shrink)

The soul is an explanatory principle of Aristotle’s natural science, accounting both for the fact that living things are alive as well as for the diverse natural attributes that belong to them by virtue of being alive. I argue that the explanatory role of the soul in Aristotle’s natural science must be understood in light of his view, stated in a controversial passage from Parts of Animals (645b14–20), that the soul of a living thing is a “complex (...) activity” of its organic body. This paper explores the role of this “complex activity” model of soul in Aristotle’s study of soul in De Anima. I argue, first, that the model has its origins in De Anima II.4, where Aristotle argues that living things do all they do by nature for the sake of a single, teleologically primary end. I argue further that Aristotle uses this model to account for the psychological attributes naturally present in living things, including their capacities for vital activities like nutrition, reproduction, and perception, and that this is the task to which Aristotle devotes the obscure final chapters of De Anima III. (shrink)

Seele kommt zweifellos schon ‚höheren‘ Tieren zu, die als solche über phänomenale Wahrnehmung verfügen. Als aufschlussreich erweist sich der kontrastierende Vergleich von Tier und Roboter: Was hat das Tier, was der Roboter nicht hat? Schlüsselfunktion kommt hier Hegels Deutung zu, die als eine Phänomenologie der ‚animalischen Seele‘ angesprochen werden kann. Sein Diktum ‚Nur ein Lebendiges fühlt Mangel‘ verweist auf das alles Organische durchwaltende Prinzip Selbsterhaltung als Grund des Seelischen: Alles, was das Tier wahrnimmt, hat dadurch existentiellen Sinn, Selbsterhaltungs-Sinn. Zugleich wird (...) deutlich, dass die Roboter-Wahrneh- mung nicht zur Sinn-Konstitution befähigt, sondern durch Sinn-Demenz charakterisiert ist. Konkret-systemtheoretisch wird die Sinnbezogenheit des Tiersubjekts hier als Emergenzphänomen desjenigen Systems gedeutet, das durch die Kooperative von Wahrnehmung, Bewertung und Verhalten (Perc-Eval-Act-System) konstituiert wird. In dieser emergentistischen Perspektive gibt es so gleichsam den Dualismus des ‚bloß Physischen‘ und des Ideell-Seelischen, der im Hinblick auf die insgesamt physische Basis zugleich ein Monismus ist. (shrink)

This chapter addresses an interpretive question about why Aristotle identifies generation, growth and nourishment as the three distinct functions or activities of nutritive soul. Scholars typically try to explain this by appealing to the shared goal of these activities, though there is no consensus about what that goal is: Does Aristotle think that generation is a way of keeping oneself alive (and thus that the shared goal is self-maintenance), or is nourishment really a quasi-generative activity (and thus that the (...) shared goal is “form (re)production”)? Rather than taking that approach, Gelber offers a different but complementary way of accounting for the unity of these activities, by focussing on the continuity of their shared physiological basis. As it is argued here, the fact that these biological processes form a continuous cycle stems from Aristotle’s adherence, in his biological theory, to principles from his hylomorphic metaphysics. Attending to the details in works such as Generation of Animals that focus on the mechanisms underlying generation, growth and nourishment, it is shown how we can construct a coherent account of the unity of the three nutritive soul activities. (shrink)

According to Kemp Smith, Descartes believed that animals were devoid of feelings and sensations. This is the so-called ‘monstrous thesis,’ which I explore here in light of two Cartesian approaches to animals. Firstly, I examine their original treatment in function of Descartes’ early metaphysical approach, i.e., all natural phenomena are to be elucidated in terms of mental scrutiny. As pain would only exist in the understanding, and animals have neither understanding nor souls, Descartes held that they did not suffer. Secondly, (...) I look at the Cartesian late naturalism; specifically, at how animals are subsequently regarded as machines that may suffer. Lastly, I conclude that the ‘monstrous thesis’ is not Cartesian because animals are machines with feelings and sensations. However, Descartes’ surprising indulgence towards humans who kill and eat animals supposes that empathy for beings who may suffer is not necessary. This may raise doubts as to another ‘monstrous thesis.'. (shrink)

According to Nicole Oresme (c. 1320–1382), human beings, unlike all other animals, consist of two substances: a thinking substance and a sensing substance. This paper presents and explores the arguments Oresme uses to arrive at this position, which is unusual in medieval philosophical psychology and which at least superficially – though their methods are completely different – resembles what Descartes concluded about the nature of the human soul and body two and a half centuries later. The paper also considers (...) some moments of ambivalence in Oresme’s presentation, as well as unresolved difficulties, several of which have theological as well as philosophical implications. (shrink)

According to Marinus of Samaria, Proclus was the author of many philosophical doctrines. In particular he was the first to assert the existence of a kind of souls that are capable of simultaneously seeing several ideas and situated between the divine Intellect which embraces all things together by a single intuition, and the souls whose thoughts pass from one idea to another. In the following we are going to answer the question, what kind of souls did Proclus discover and why (...) did he thought it to be necessary to introduce them in his metaphysical system. To solve this problem it seems reasonable to clarify the mechanism of horizontal-vertical progression in Proclus’ philosophy, as well as to describe the general structure of the psychic level of reality embracing the so called Monad of “unparticipated” Soul and the multiplicity if its “participated” products: divine, demonic and human souls. Unlike some previous scholars, who alleged that souls discovered by Proclus were demonic or intelligent ones, I affirm that Marinus could have in mind hypercosmic participated souls, situated between the unparticipated monad of the psychic level of reality and the multiplicity of participated souls within the material cosmos. In support of this assumption I cite some relevant passages from Proclus’ Commentary on “Timaeus” and demonstrate that he named “hypercosmic” not only the unparticipated monad of Soul, but also souls of the so called “absolute” gods, which are both in touch with the sensible cosmos and above it because of animating eternal immaterial bodies consisting of supra-celestial light. In conclusion I try to establish the genuine authorship of the doctrine of hypercosmic souls and to answer the question, why did Marinus attribute it to Proclus. (shrink)

This paper considers the relevance of the theory of the cogitative power in Aquinas, as highlighted by Cornelio Fabro during his early research in the fourth decade of the past century, in contemporary neuropsychological studies, and particularly as a specific way of overcoming a dualistic approach in the psychology of perception. The thesis is coherent with an anthropological view based on the substantial unity between soul and body. As a consequence, the capacities of the cogitative faculty (estimative in animals) (...) involve a special account of perception, irreducible to pure thought and to sensations as well, an account that is present in the psychological view of M. Merleau-Ponty and J. J. Gibson. (shrink)

this book concerns the debates on the functions of "imagination" (phantasia, imaginatio) in the arousal of passions in the Aristotelian and post-Aristotelian traditions till the XVIIth Century. The simple fact that often a mental representation is followed by pleasure or sorrow and that these emotions can cause actions, became progressively part of a wider theory of animal and human behaviour. In the case of human behaviour, the "force of imagination" became a kind of general justification of all kind of (...) anomic and irregular behaviour and beliefs, including true paranormal conditions of the body. The book recapitulates the main evolution of this way of seeing passions - from Aristotle to Avicenna and his Latin followers - till the age of the authors who see the inner work of "imagination" as a constant danger for human reason, and imagination itself as faculty to control with care for its propension to be the "advocate" of the "inferior part of the soul", such as Gianfrancesco Pico, Juan Luis Vivés, Pierre Charron, Blaise Pascal and a large part of the French Augustinian Moral Philosophers. (shrink)

Psychology considered as a natural science began as Aristotelian "physics" or "natural philosophy" of the soul, conceived as an animating power that included vital, sensory, and rational functions. C. Wolff restricted the term " psychology " to sensory, cognitive, and volitional functions and placed the science under metaphysics, coordinate with cosmology. Near the middle of the eighteenth century, Krueger, Godart, and Bonnet proposed approaching the mind with the techniques of the new natural science. At nearly the same time, Scottish (...) thinkers placed psychology within moral philosophy, but distinguished its "physical" laws from properly moral laws. British and French visual theorists developed mathematically precise theories of size and distance perception; they created instruments to test these theories and to measure visual phenomena such as the duration of visual impressions. By the end of the century there was a flourishing discipline of empirical psychology in Germany, with a professorship, textbooks, and journals. The practitioners of empirical psychology at this time typically were dualists who included mental phenomena within nature. Accordingly, psychology as a natural scientific disciplines was not invented in the 18th and 19th centuries, but *remade* from the extant empirical psychology. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Spinoza and the Theory of Organism HANS JONAS I CARTESIANDUALISMlanded speculation on the nature of life in an impasse: intelligible as, on principles of mechanics, the correlation of structure and function became within the res extensa, that of structure-plus-function with feeling or experience (modes of the res cogitans) was lost in the bifurcation, and thereby the fact of life itself became unintelligible at the same time that the explanation (...) of its bodily performance seemed to be assured. The impasse became manifest in Occasionalism : its tour de force of an extraneous, divine "synchronization" of the outer and the inner world (the latter denied to animals) not only suffered from its extreme artificiality, the common failing of such ad hoc constructions, but even at so high a cost failed to accomplish its theoretical purpose by its own terms. For the animal machine, like any machine, raises beyond the question of the "how" that of the "what for" of its functioning---of the purpose for which it had thus been constructed by its maker.1 Its performance, however devoid of immanent teleology, must serve an end, and that end must be someone's end. This end may (directly) be itself, as indeed Descartes had implied when declaring self-preservation to be the effect of the functioning of the organic automaton. In that case the existence as such of the machine would be its end--either terminally, or in turn to benefit something else. In the former case, the machine would have to be more than a machine, for a mere machine cannot enioy its existence. But since, by the rigorous conception of the res extensa, it cannot be more than a machine, its function and/or existence must serve something other than itself. Automata in Descartes ' time were mainly for entertainment (rather than work). But the raison d'etre of the living kingdom could not well be seen in God's indulging his mechanical abilities or in the amusement of celestial spectators--especially since mere complexity of arrangement does not create new quality and thus add something to the unrelieved sameness of the simple substratum that might enrich the spectrum of being. For quality, beyond the primitive determinations of the extended per se, is the subjective creature of sensation, the confused representation of quantity in a mind; and thus organisms cannot harbor it because as mere machines they lack mentality, and pure spirits cannot because they lack sensuality, or the privilege of confusion and thereby of illusion with its possible enjoyment. And as to their intellectual enjoyment, even that, deprived of the thrill of discovery by the same token, would pale in the contemplation of what to sufficiently large The concept of "machine," adopted for its strict confinementto efficientcause, is still a finalisticconcept,even thoughthe final cause is no longer internal to the entity, as a mode of its own operation,but external to it as antecedent design. [43] 44 HISTORY OF PHILOSOPHY intellects is nothing but the ever-repeated exemplification of the same few, elementary (and ultimately trivial) truths. There remained, then, the time-honored--Stoic as well as Christian--idea that plants and animals are for the benefit of Man. Indeed, since the existence of a living world is the necessary condition for the existence of any of its members, the self-justifying nature of at least one such member (= species) would justify the existence of the whole. In Stoicism, Man provided this end by his possession of reason, which makes him the culmination of a terrestrial scale of being that is also self-justifying throughout all its grades (the end as the best of many that are good in degrees) ; in Christianity, by his possession of an immortal soul, which makes him the sole imago Dei in creation (the end as the sole issue at stake) ; and Cartesian dualism radicalized this latter position by making man even the sole possessor of inwardness or "soul" of any kind, thus the only one of whom "end" can meaningfully be predicated as he alone can entertain ends. All other life then, the product of physical necessity, can be considered his means. However, this traditional idea, in its anthropocentric vanity never a... (shrink)

This article concerns the place of Plato’s eschatology in his philosophy. I argue that the theory of reincarnation appeals to Plato due to its power to explain how non-human animals came to be. Further, the outlines of this theory are entailed by other commitments, such as that embodiment disrupts psychic functioning, that virtue is always rewarded and vice punished, and that the soul is immortal. I conclude by arguing that Plato develops a view of reincarnation as the chief tool (...) that the gods have to ensure that virtue is victorious over vice throughout the whole cosmos. (shrink)

Does self-knowledge help? A rationalist, presumably, thinks that it does: both that self-knowledge is possible and that, if gained through appropriate channels, it is desirable. Descartes notoriously claimed that, with appropriate methods of enquiry, each of his readers could become an expert on herself or himself. In this paper I reject the widespread interpretation of Descartes which makes his dualist view of the body as negative or as pathological as that expressed by Socrates in Plato's *Phaedo*. I argue not just (...) that the old moral cosmobiological disgust at the body is absent in Descartes, but that, positively, Descartes *requires* us to contract full intimacy with our own body and our own peculiar past. He does wish for objective knowledge in these difficult domains, but this does not render his neurological ethics a universal prescription, for such objective knowledge is nevertheless knowledge of local phenomena, of the peculiarities of idiosyncratic associations. Civilsing the body, in seeking dominion over it, is a *process*; and, I will argue, Descartes was too firmly convinced that the body constantly changes its nature to have thought consistently that the process could come to an end. My case rests first on an analysis, in the next three sections, of capacities which, according to Descartes, we share with other animals. Sections 2 and 3 argue for strongly dynamic interpretations of Descartes' views on body and on corporeal memory respectively. Then Section 4 backtracks to support more firmly the surprisingly complex form of 'automatic' responses which I attribute to Descartes' beast- and body-machines. Finally, in section 5, I reintroduce the soul and the capacities for reflection which it allows in the human compound, showing how closely Descartes thinks we must work with the body, its habits and its history, in deliberately moulding our associative responses with active mind. (shrink)

For Aristotle, human cognition has a lot in common both with non-human animal cognition and with divine cognition. With non-human animals, humans share a non-rational part of the soul and non-rational cognitive faculties (DA 427b6–14, NE 1102b29 and EE 1219b24–6). With gods, humans share a rational part of the soul and rational cognitive faculties (NE 1177b17– 1178a8). The rational part and the non-rational part of the soul, however, coexist and cooperate only in human souls (NE 1102b26–9, (...) EE 1219b28–31). In this chapter, I show that a study of this cooperation helps to uncover some distinctive aspects of human cognition and desire. (shrink)

This article presents a comparative analysis of the views on plants in Ps. Aristotle namely Nicolaos of Damascus and Avicenna, examining the distinct philosophical frameworks each thinker employs to understand the nature of plants. The representative work of the Aristotelian tradition, De Plantis, offers a naturalistic perspective, focusing on biological processes such as growth, nourishment, and reproduction. (T)his approach is empirical, categorizing plants as distinct from animals but still subject to similar material causes within the natural order. The Aristotelian framework, (...) emphasizing observable processes, laid the foundation for subsequent studies in plant biology. In contrast, Avicenna builds upon Aristotelian ideas, introducing a metaphysical dimension. In his Kitab al-Nabat, Avicenna posits the existence of the “vegetative soul” as a guiding principle that governs plant growth, while also reflecting divine intelligence and cosmic order. Avicenna’s metaphysical and theological insights distinguish his approach from Aristotelian naturalism, positioning plants as both biological entities and manifestations of divine wisdom. This article highlights how the intellectual development of botany and the history of philosophy has been shaped by the synthesis of Aristotelian empirical naturalism and Avicenna’s metaphysical synthesis. The comparison reveals the continued relevance of these two perspectives in contemporary debates in the philosophy of biology, particularly in reconciling material causality with higher principles of existence. (shrink)

Leibniz has almost universally been represented as denying that created substances, including human minds and the souls of animals, can causally interact either with one another or with bodies. Yet he frequently claims that such substances are capable of interacting in the special sense of what he calls 'ideal' interaction. In order to reconcile these claims with their favored interpretation, proponents of the traditional reading often suppose that ideal action is not in fact a genuine form of causation but instead (...) a merely apparent influence which serves to 'save the appearances.' I argue that this traditional reading distorts Leibniz's thought and that he actually considers ideal action a genuine (though non-standard) form of causation. (shrink)

Recently scholars have been claiming that Aristotle’s biological explanations treat “facts about matter”—facts such as the degree of heat or amount of fluidity in an organism’s material constitution—as explanatorily basic or “primitive.” That is, these facts about matter are taken to be unexplained, brute facts about organisms, rather than ones that are explained by the organism’s form or essence, as we would have expected from Aristotle’s general commitment to the causal and explanatory priority of form over matter. In this paper, (...) I present three considerations for rejecting the view that facts about matter are primitive. First, there is evidence that those putative unexplained facts about degrees of heat, dryness, fluidity, etc. are, in fact, explained. Second, there are certain cases, such as human intelligence, where it would be quite implausible to consider the explanation in terms of degrees of heat to be starting from what Aristotle considers primitive facts. Third, the idea that facts about matter are as explanatorily primitive as facts about form requires a particular conception of the causal processes that the explanations mirror. But this conception of the causal processes conflicts with the way Aristotle characterizes them in Generation of Animals. There, heat is not treated as a causal factor that works “independently” of soul. In my view, these three considerations provide compelling reason to reject the claim that Aristotle’s biology treats facts about matter as primitive. (shrink)

The aim of this paper is to evaluate the level of gender bias in Aristotle’s Generation of Animals while exercising due care in the analysis of its arguments. I argue that while the GA theory is clearly sexist, the traditional interpretation fails to diagnose the problem correctly. The traditional interpretation focuses on three main sources of evidence: (1) Aristotle’s claim that the female is, as it were, a “disabled” (πεπηρωμένον) male; (2) the claim at GA IV.3, 767b6-8 that females are (...) a departure from the kind; and (3) Aristotle’s supposed claim at GA IV.3, 768a21-8 that the most ideal outcome of reproduction is a male offspring that perfectly resembles its father. I argue that each of these passages has either been misunderstood or misrepresented by commentators. In none of these places is Aristotle suggesting that females are imperfect members of the species or that they result from the failure to achieve some teleological goal. I defend the view that the GA does not see reproduction as occurring for the sake of producing males; rather, what sex an embryo happens to become is determined entirely by non-teleological forces operating through material necessity. This interpretation is consistent with Aristotle’s view in GA II.5 that females have the same soul as the male (741a7) as well as the argument in Metaphysics X.9 that sexual difference is not part of the species form but is an affection (πάθος) arising from the matter (1058b21-4). While the traditional interpretation has tended to exaggerate the level of sexism in Aristotle’s
developmental biology, the GA is by no means free of gender bias as some recent scholarship has claimed. In the final section of the paper I point to one passage where Aristotle clearly falls back on sexist assumptions in order to answer the difficult question, “Why are animals divided into sexes?”. I argue that this passage in particular poses a serious challenge
to anyone attempting to absolve Aristotle’s developmental biology of the charge of sexism. (shrink)

In a work entitled On the Generation of Animals, Aristotle remarks that “intellect (nous) alone enters from outside (thurathen)”. Interpretations of this passage as dualistic dominate the history of ideas and allow for a joining together of Platonic and Aristotelian doctrine on the soul. This, however, pulls against the well-known Aristotelian position that soul and body are intertwined and interdependent. The most influential interpretations thereby misrepresent Aristotle’s view on soul and lack any real engagement with his embryology. (...) This paper seeks to extract the account of intellect (nous) in Aristotelian embryology from this interpretative background and place it within the context of his mature biological thought. A clear account of the actual import of this statement in its relevant context is given before explaining how it has been misunderstood by various interpretative traditions. The paper finishes by touching on how early commentary by Christian writers, freed as it was from the imperative to synthesise Greek philosophy, differed from those that came after. While realising that Aristotle’s position would not aid them in their explanations of the soul’s survival after death, their engagement with Aristotle’s science allowed for other aspects of theology concerning the fittingness of soul to body. (shrink)

This essay considers three case studies of Aristotle’s use of matter, drawn from three different scientific contexts: menstrual fluid as the matter of animal generation in the Generation of Animals, the living body as matter of an organism in Aristotle’s On the Soul (De Anima), and the matter of elemental transformation in Generation and Corruption. I argue that Aristotle conceives of matter differently in these treatises (1) because of the different sorts of changes under consideration, and (2) because (...) sometimes he is considering the matter for one specific change, and sometimes the matter for all of a thing’s natural changes. My account allows me to explain some of the strange features that Aristotle ascribes to the matter for elemental transformation in Generation and Corruption II. These features were interpreted by later commentators as general features of all matter. I argue that they are a result of the specific way that Aristotle thinks about the transmutation of the elements. (shrink)

[What is the Human Being? Peter Auriol and the Role of Cognitive Psychology in the Medieval Definition of the Human Being: ] This paper explores how medieval philosophers used cognitive psychology in defining what the human being is, paying special attention to the Franciscan thinker Peter Auriol (c. 1280 – 1322). First, I examine the motivations of Auriol’s claim that the property of being alive is bound to the property of being cognitive (i. e. being capable of cognition). Then, the (...) foundations of medieval faculty psychology and Auriol’s conception of cognition are introduced. I also argue that the emphasis which Auriol puts on the activity of soul’s faculties leads him to the conclusion (unusual in his days) that the distinction among these faculties is established from the first person perspective. Finally, Auriol’s cognitive definition of the human being is introduced – human beings are human beings precisely because their cognitive experience differs from the way the cognition works in animals on the one hand and in God on the other hand. Whereas animals have only sensory soul’s faculties, humans have the intellect in addition and, therefore, they are capable of universal cognition. Moreover, since humans have not only intellect but also the inner senses (particularly, the phantasy), the universals appear to the human intellect only as blended with the individual that the universal was abstracted from, and the human intellect is not capable of paying attention to no more than just one object at the same moment. Since God and angels have only intellect, these distinctively human features are absent from their cognitive experience. (shrink)

Sayyid Sadr al-din Mohammad Dashtaki Shirazi is the inventor of the division of composition into unified composition and composition by join. With this division, Dashtaki has expressed a new theory about the composition of the material object from first matter and form, as well as the composition of man from soul and body, and considers these compositions as an alliance and unification, not simply the parts joining to each other. In this paper, we will present Dashtaki’s arguments on the (...) theory of unified composition. We will also examine three objections to this theory and responses to them. Finally, we will examine the background of this theory in Bahmanyar's phrases. Dashtaki believes that when the components in the compound have a real plurality, i.e. each one exists separately from the other, a composition by join is created, such as the composition of a house from numerous clays. But if the components in the compound are united and none of them are separate from the others and exists actually, the resulting composition will be an alliance and union. He believes that in the unified composition, every component is identical to any other component and is identical to the whole. Accordingly, Reza is a unique being, both human and writer. In order to achieve a composition, a plurality is needed and in order to form a single composition, there must be plural components related to each other. An important question is that, principally how is a composition possible, if unified composition comes to existence only when the components are made united with each other and with the whole? In other words, unified composition is not possible, because the first condition of the acquisition of the composition, i.e., the plurality of the constituent components, is not satisfied. Dashtaki strives to express a difference between the components in the union compound. He believes that the conditions of the realization and the survival of the components are different, and that is enough for them to be different. In Dashtaki's point of view, in the unified composition the components are analytical, not being separate and plural, in reality. In other words, the components do not have actual and "in-the-world" plurality, which means that it is our intellect that separates them and looks at them as independent objects. Therefore, unity and identity are in-the-world and plurality and discernibility are analytical and in the mind. Dashtaki's first argument for his theory in general is as follows: the three major material objects (solid, plant and animal) are undoubtedly real compounds. But in these compositions, components exist potentially, and in a unified composition, components do not exist actually. Therefore, these objects are unified compounds. The second argument is that the accuracy of predication implies unity. In the unified composition, the components are identical with the whole, and therefore, the components can be predicated to the composition. In Dashtaki's view, if A is predicated to B, then it could be concluded that they are identical and unified. The first objection to this theory is that the unity is incompatible with causality. From the perspective of the Peripatetics, form is the cause of the matter, and this is incompatible with the union of the two. Dashtaki states that in case of causality, there is no need for cause and effect to be two different and discernible entities, but a single entity may be from one aspect the cause and, from another, the effect. In other words, the foresaid causality is analytical causality. When mind analyses something, and then finds analytical components, it can see between those analytical and intellectual components, causality, and find some of them as the cause of the others. The second objection is the incorrectness of the unity in compounds with components not being similar. only in the compounds having similar parts, one can accept the unity of matter and form. For example, in compounds such as horses, it is not possible to accept the union of matter and form, because in horses, there are components with different natures, such as bones, flesh and nerves. Unity of These parts with each other and with the whole is not plausible. Dashtaki’s respond is that the horse is also a natural unit and has no actual plurality. Components having similar or different natures does not make any difference. According to the theory of unified composition, the horse's components are united with the horse's form and have only analytical plurality. Horse’s components are just analytical components, not actual, independent ones. The third objection is the incompatibility of the actual existence of components with their unity. But Dashtaki maintains that a unique actual personal entity cannot have actual plural components. He states that compounds such as horses exist objectively, but objective and real existing is divided into two kinds: dependent existence, and independent existence as a single real thing. Therefore, the two characteristics of "being a component" and "being independent" are incompatible and do not come together in a real being. Dashtaki has also quoted phrases from Bahmanyar to confirm his point of view. Bahmanyar says that the properties of an animal belong to the whole and compound, not to each component. For example, it is a horse that feels, not its bone or brain, as the eye is also a compound, but seeing is the work of the eye, not the work of any of its components. Therefore, the animal, which is something compound, has characteristics that none of its components have. So the animal is something over and above its components. Bahmanyar thinks the components in the animal are potential. Then he states a general rule: any compound in which unity is real, its components do potentially exist. Therefore, Bahmanyar considers the body parts of the living organism as a potential being and generally believes that the components of any compound that have true unity are potential. The potentiality of the components in a real compound does not that mean that the components are destroyed and a new thing is produced. The components are also available, but they do not have the effects they had separately before the composition comes into existence. In other words, the components have found a unique identity together and therefore have a new effect.. It seems that Bahmanyar has expressed the same idea that Dashtaki is looking for in the theory of unified composition. Therefore, it can be said that before Dashtaki, Bahmanyar has come up with the thought of a unity. Of course, Bahmanyar has not explained much about this, and Dashtaki is the first who has organized and completed this idea as a philosophical theory. (shrink)

In this article, I channel the autobiography of Black Panther cofounder Huey P. Newton, entitled Revolutionary Suicide, against the misogyny of the alt-right movement today. Both Newton and the alt-right have been powerfully influenced by Nietzsche, but one way of grasping the central difference between them is by comparing their conceptions of Dionysus. While the alt-right sticks closer to Nietzsche’s conception, which minimizes the god’s androgyny, Newton’s thought resonates with that androgyny, thereby bringing him closer to the most influential Dionysus (...) scholar since Nietzsche, Walter Otto. I therefore turn to the latter’s Dionysus: Myth and Cult, whose analyses I synthesize into the following image inspired by the god’s closest animal familiar: the dancingly-graceful panther as aqueous-androgynous soul-hunter. Reimagining Newton’s Black Panther in this way, finally, can help us overcome the alt-right. (shrink)

Descartes argued that the passions of the soul were immediately felt in the body, as the animal spirits, affected by the movement of the pineal gland, spread through the body. In Leibniz the effect of emotions in the body is a different question as he did not allow the direct interaction between the mind and the body, although maintaining a psychophysical parallelism between them. -/- In general, he avoids discussing emotions in bodily terms, saying that general inclinations, passions, (...) pleasures and pains belong only to the mind or to the soul (NE II, xxi, §72). He is also keen to point out that our passions derive mostly from our bodies. However, like Spinoza (Ethics III, prop. XI, Scholium) he thought that some emotions such as joy can produce pleasures which can be described also in bodily terms. For example, in a short memoir Felicity he says that music can be a pleasure for the ears and symmetry can be a pleasure for the eyes. These more intellectual emotions are actions in the sense that they represent perfection emanating from their source, the absolutely perfect being, that is, God. The feeling of perfection may produce a state of well-being which concerns both the soul and the body. -/- In my paper I will trace instances of Leibniz’s remarks on how these kind of emotions affect the body. I will also discuss the different ways the body gives rise to passions in the soul. My primary source is Nouveaux essais, book II, chapter xx and xxi, but I will also discuss various other writings by Leibniz. (shrink)

According to the Cambridge Platonist Henry More, individual spirits--the souls of humans and non-human animals--are extended but cannot be physically divided. His contemporaries and recent commentators have charged that More has never given an explication of the grounds on which the indivisibility of spirits is based. In this article, I suggest that exploring the usage that More makes of the analogy between spirits and light could go some way towards providing such an explication. More compares the relation between spirit and (...) matter to the relation that, according to Aristotelian theories of light, holds between ?intentional species? and matter. I will argue that the purpose of his comparison is to highlight that both intentional species and spirits are existentially independent from matter. The existential independence of intentional species from matter expresses itself in the fact that light is not moved through the motion of the illuminated body. The existential independence of spirits from matter expresses itself in the fact that when a body that is coextensive with a spirit is divided, the spirit is not thereby divided but rather contracts into the remaining living organism. (shrink)

Commentators have not said much regarding Berkeley and Stoicism. Even when they do, they generally limit their remarks to Berkeley’s Siris (1744) where he invokes characteristically Stoic themes about the World Soul, “seminal reasons,” and the animating fire of the universe. The Stoic heritage of other Berkeleian doctrines (e.g., about mind or the semiotic character of nature) is seldom recognized, and when it is, little is made of it in explaining his other doctrines (e.g., immaterialism). None of this is (...) surprising, considering how Stoics are considered arch-materialists and determinists. My aim is to suggest that our understanding of Berkeley’s philosophy is improved significantly by acknowledging its underlying Stoic character. I argue that Berkeley proposes not only a semantic ontology based on assumptions of Stoic logic but also a doctrine in which perceptions or ideas are intelligible precisely because they are always embedded in the propositions of a discourse or language. (shrink)

The Evolution of the Sensitive Soul is a landmark attempt to make progress on the problem of animal consciousness. Ginsburg and Jablonka propose a general cognitive marker of the presence of consciousness: Unlimited Associative Learning. They use this marker to defend a generous view about the distribution of consciousness in the natural world, on which a capacity for conscious experience is common to all vertebrates, many arthropods and some cephalopod molluscs. They use this inferred distribution to defend a (...) view about the evolution of consciousness, on which it has evolved at least three times, first evolved at around the time of the Cambrian explosion, and was in fact the driving force behind that explosion. In this essay review, I reflect critically on the book’s central idea: the proposal that Unlimited Associative Learning provides a general marker of consciousness. (shrink)

Gottfried Wilhelm Leibniz presents the idea of monads, as non-communicative, self-actuating system of beings that are windowless, closed, eternal, deterministic and individualistic. For him, the whole universe and its constituents are monads and that includes humans. In fact, any ‘body’, such as the ‘body’ of an animal or man has, according to Leibniz, one dominant monad which controls the others within it. This dominant monad, he often refers to as the soul. If Leibniz’s conception of monads is accepted, (...) it merely establishes human subjectivity, idiosyncrasies, biases, prejudices and individual points of view as the norm. How then do we ensure inter-subjectivity and the kind of social interaction requisite for the achievement of social order, since Leibniz’s system forecloses the possibility of interaction and communication among monads? In this essay, we argue that just as Leibniz’s monads synchronize only through the Supreme Monad (Monas Monadum), humans as social monads should also interact through a matrix of ideals like truth, honesty, sincerity, integrity, altruism, impartiality, compassion and trust. Since social order is actualised only within the context of linked social structures, relations and values, these utopian ideals would form the fulcrum through which humans relate and the very foundation that would anchor a viable social order. Our aim here is to establish a relationship between Leibniz’s metaphysics and the physical domains of life by showing that metaphysical constructs can impinge on human social relations and wellbeing. The study employed the qualitative method of research through critical analysis of texts, library and archival materials. (shrink)

Descartes was born in La Haye (now Descartes) in Touraine and educated at the Jesuit college of La Fleche` in Anjou. Descartes’modern reputation as a rationalistic armchair philosopher, whose mind–body dualism is the source of damaging divisions between psychology and the life sciences, is almost entirely undeserved. Some 90% of his surviving correspondence is on mathematics and scientific matters, from acoustics and hydrostatics to chemistry and the practical problems of constructing scientific instruments. Descartes was just as interested in the motions (...) of matter as in the supernatural soul, and he advised against spending too much time on metaphysical inquiries which neglect imagination and the senses. After meeting the Dutch engineer Isaac Beeckman in 1618, Descartes became committed to a systematically ‘mechanical’account of nature. This involved explaining all natural processes in terms of interactions between microscopic material bodies in motion. Descartes modelled his physics and cosmology on the behaviour of fluids, which also have a distinctive and central role in his physiology: the key processes for natural philosophical investigation are the circulation and mutual displacement of constrained bodies, rather than the isolated collisions of atoms in a void. Descartes settled in Holland in 1628, and commenced an ambitious programme of physiological research. In 1630 he was ‘studying chemistry and anatomy simultaneously’, and in late 1632 he was ‘dissecting the heads of various animals’, in order to ‘explain what imagination, memory, etc. consist in’. By late 1633 Descartes had almost completed L’homme, the Treatise on Man; but he abandoned plans to publish it along with a work on matter theory and optics which relied on Copernican cosmology, after he heard of the condemnation of Galileo. L’homme was published posthumously in 1662 (Latin) and 1664 (French); not until 1972 was it fully translated into English. L’homme draws on many (mostly unnamed) Renaissance medical writers, and covers, firstly, a range of traditional physiological topics, such as digestion and respiration.. (shrink)

This chapter discusses Gottfried Wilhelm Leibniz’s philosophical reflections on mind and body. It first considers Leibniz’s distinction between substance and aggregate, referring to the former as a being that must have true unity (what he calls unum per se) and to the latter as simply a collection of other beings. It then describes Leibniz’s extension of the term “substance” to monads and other things such as animals and living beings. It also examines Leibniz’s views about the union of mind and (...) body, whether mind and body interact, and how interaction is related to union. More specifically, it asks whether mind and body together constitute an unum per se and analyzes Leibniz’s account of the per se unity of mind-body composites. In addition, the chapter explores the problem of soul-body union as opposed to mind-body union and concludes by discussing Leibniz’s explanation of soul-body interaction using a system of pre-established harmony. (shrink)

As Ebbinghaus (1908) tells us in the opening words of his popular textbook of psychology, “psychology has a long past but only a short history.” In my opinion, there are three foundational moments in the history of psychology and, paradoxically, all three are moments of great advancement in biology. First, in the long past of psychology, psychology did not exist as such but was part of philosophy. It is extremely interesting to understand why it has been necessary, at one point (...) of time in the sixteenth century, to invent this field and to create a signifier – namely “psychology” – separate from philosophy, which enabled the field to distinguish itself from philosophy (Mengal, 2000/2001). In this century of religious violence, bare corpses lay everywhere and progresses in anatomy are major. In 1540, the German religious reformer Philippe Melanchthon publishes a book which comments the De anima of Aristotle and he completes the Aristotelian text with a long treaty of anatomy (Mengal, 2000/2001). On the basis of this new knowledge, Melanchthon attributes functions to the body which were previously reserved for the soul. The brain becomes the principal organ of sensory functions and displaces the heart as the seat of emotional life and of thought. To the Aristotelian position that all living beings, whether plant, animal, or human, to varying degrees possess a soul which organizes the body, Melanchthon opposes a dualistic anthropology which divides the human in body and soul. The two-dimensional “anthropologia” is articulated in “anatomia,” science of body, and “psychologia,” science of the soul. It is this new anthropology that is diffused into the world of the Reformation (Mengal, 2000/2001). The Dutch reformer Snellius (1594), for example, defines the body and the soul by their respective essential property: “The rational soul of man is the thought that, coupled with the body, completes man. (…) The physical things closer to natural bodies that move naturally, have an extension and for that reason occupy a space. (…) The faculty of the rational soul is the mind or will. Thought is the faculty of the soul to discourse and think about things which are and which are not.”1 (Snellius, 1594, pp. 26–27). It is as a philosopher that René Descartes proposes his dualist vision much in line with the reformist opinions. Descartes dissects animals and human cadavers and is familiar with the research on the flow of blood (Fuchs, 2001). He comes to the conclusion that the body is a complex device that is capable of moving without the soul, thus contradicting the Aristotelian doctrine of the soul. The metaphysical order, which states that the body exists by the soul, is broken. (shrink)