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- Jonathan Bennett (1965). A Note on Descartes and Spinoza. Philosophical Review 74 (3):379-380.DESCARTES was a dualist and Spinoza a monist. If this marks a contrast between them, there ought to be a question to which Descartes’s answer was “two” and Spinoza’s “one”. (a) How many substances are there? Spinoza: “One.” Descartes: “Strictly speaking, one; but if we relax the criteria for substantiality a little, millions.” On no interpretation of the question did Descartes answer, “Two.” (b) How many basic kinds of substance are there? Descartes: “Two.” Spinoza: “Two; though there is only one substance, and it is of both kinds.” Descartes is usually called a dualist because he took thought and extension to be the two basic, logically independent ways of being; but in this sense Spinoza was a dualist, too. If we take seriously his talk of “infinite” attributes, we may call him a pluralist on this point, but certainly not a monist. (c) Of how many substances does an embodied person consist? Descartes (ignoring his views about the divisibility of matter): “Two: an embodied person is made up of a body and a mind, which are distinct substances.” Spinoza: “None: an embodied person is a mode (under two attributes) of the one and only substance, and is not made up of any number of substances.” Those are the questions which come most readily to mind, and none yields a dualist/monist contrast between Descartes and Spinoza. But: (d) Given that A and B are basic, logically independent attributes, what is the smallest number of substances needed to instantiate both A and B? To this Descartes does answer “Two” and Spinoza does answer “One.” I suspect that those who “contrast” Descartes and Spinoza as dualist and monist usually have in mind not the genuine contrast brought out by (d) but rather the fact that Descartes answered “Two” to (b) while Spinoza answered “One” to (a). Still, (d) is important in the thinking of both philosophers and in the philosophy of mind generally. Strawson's chapter, “Persons,” for example, is interesting partly for its Spinozist answer to (d): Strawson does not reduce mental predicates to physical or vice versa, but says that predicates of both kinds may apply to a single thing, namely a person..
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Descartes claims that God is a substance, and that mind and body are two different and separable substances. This paper provides some background that renders these claims intelligible. For Descartes, that something is real means it can exist in separation, and something is a substance if it does not depend on other substances for its existence. Further, separable objects are correlates of distinct ideas, for an idea is distinct (in an objective sense) if its object may be easily and clearly separated from everything that is not its object. It follows that if our idea of God is our most distinct idea, as Descartes claims, then God must be a substance in the Cartesian sense of the term. Also, if we can have an idea of a thinking subject which does not in any sense refer to bodily things, and if bodily things are substances, then mind and body must be two different substances.
Leibniz used Descartes’ strict notion of substance in “That a Most Perfect being is Possible” to characterize God but did not intend to undermine his own philosophical views by denying that there are created substances. The metaphysical view of substance in this passage is Cartesian. A discussion of radical substance without any sort of denial in the possibility of other substances does not indicate Spinozism. If this interpretation is correct, then the passage is neither anomalous nor mysterious. There is reason to believe that the passage expresses just the beliefs that we should expect Leibniz to hold in his De Summa Rerum period. Furthermore, this interpretation indicates that while Leibniz’s metaphysics during this stage of his career is suggestively similar to Spinoza’s, there is no evidence that Leibniz accepted Spinoza’s pantheistic conclusion.
In Descartes's time the issue between materialists and their opponents was framed in terms of substances. Materialists such as Thomas Hobbes and Pierre Gassendi maintained that people are physical systems with abilities that no other physical systems have; people, therefore, are special kinds of physical substance. Descartes's DUALISM, by contrast, claimed that people consist of two distinct substances that interact causally: a physical body and a nonphysical, unextended substance. The traditional.
In what follows I try to show that Spinoza modelled his project of rational psychology, in some of its major respects, upon Descartes's metaphysics of matter. I argue further that, like Descartes, who paid for the rationalization of the science of matter the price of having to leave out of his description non-quantifiable qualities, so Spinoza left out of his psychology the non-rationalizable aspects of emotions, i.e. whatever in them could not be subsumed under common notions. He therefore was left with the cognitive aspects of emotions, keeping outside of his report the inner feeling which accompanies them. Spinoza's psychology, I claim, disregards any non-cognitive aspect of emotions.
Foucher de Careil publie des textes inédits de Leibniz sur Spinoza, à la fois dans un but historiographique et pour prendre position dans le débat du XIXe siècle sur le panthéisme et le spiritualisme. Il oppose de plus en plus nettement Leibniz à Descartes, considéré comme l'inspirateur de Spinoza, et critique ainsi les positions de Victor Cousin. Foucher de Careil makes available unpublished writings of Leibniz on Spinoza for historiographical purposes and to have his say in the 19th century debate over pantheism and spiritualism. He contrasts Leibniz with Descartes in an ever more clear-cut fashion, seeing Descartes as having inspired Spinoza. He can thus criticise Victor Cousin's stance.
Spinoza's understanding and understanding Spinoza -- Spinoza's understanding -- Understanding Spinoza -- The metaphysics of substance -- Descartes and substance -- Spinoza contra Descartes on substance -- Modes -- Necessitarianism -- The purpose of it all -- The human mind -- Parallelism and representation -- Essence and representation -- Parallelism and mind-body identity -- The idea of the human body -- The pancreas problem, the pan problem, and panpsychism -- Nothing but representation -- Representation, will, and belief -- Skepticism -- Psychology : striving and self-preservation -- Conatus -- Desire, joy, and sadness -- Love, hate, and all that -- The ethics of the ethics -- The good notion of the good -- The right notion of the right -- Knowledge and morality -- Freedom and morality -- Helping others -- Lies and degrees of freedom -- The state, religion, and scripture -- Rights and power -- Religion and the state -- Scripture -- Prophecy and the truth of the Bible -- From PSR to eternity -- The aftermath of Spinoza -- Leibniz -- Bayle and Hume -- The pantheism controversy -- Hegel -- Nietzsche -- Prospects of spinozistic rationalism.
It is widely-accepted that Descartes is a substance dualist, i.e. that he holds that there are two and only two kinds of finite substance – mind and body. However, several scholars have argued that Descartes is a substance trialist, where the third kind of substance he admits is the substantial union of a mind and a body, the human being. In this paper, I argue against the trialist interpretation of Descartes. First, I show that the strongest evidence for trialism, based on Descartes' discussion of so-called incomplete substances, is highly inconclusive. Second, I show that a kind of unity (‘unity of nature’), which is had by all and only substances, is not had by human beings. The fact that the proper parts of a human being, namely a mind and a body, are of different natures entails that what they compose has at most a ‘unity of composition’. And a thing cannot be a substance in virtue of having a unity of composition. Therefore, Cartesian human beings are not substances.
In this paper, I examine the thought of Descartes and Spinoza regarding the immortality of the soul. I conclude that Descartes’s argument(s) for the immortality of the soul—or at least the argument(s) that one can construct based on Descartes’s texts—are disappointing, and that Spinoza’s thought on the soul and its relation to the body leaves little room for the traditional doctrine of personal immortality.
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I argue for a strict identity interpretation of Spinoza's metaphysics. This interpretation is contrasted with two of leading interpretations of Spinoza on the relation between attribute and substance. In particular, the interpretations of Jonathan Bennett and Edwin Curley. I show that there are difficulties with both of these interpretations. In response I claim that the relation between attribute and substance in Spinoza is one of identity. Each attribute of a substance is in fact the essence of that substance. I argue that the essence of substance, for Spinoza, is identical to that substance. To explain why Spinoza claims that there is more than one attribute I appeal to Descartes' theory of distinctions. Attributes are only conceptually distinct from every other attributes as well as the one substance, thus each attribute refers to the same thing.
Abstract: On several occasions (see e.g. Principles I/48) Descartes claims that sensations, emotions, imagination and sensory perceptions belong neither to the mind or to the body alone, but rather to their union. This seems to conflict with Descartes’s definition of “thought” given elsewhere, which classifies the same events as modes of a thinking substance, and hence depending for their existence only on minds. In this paper I offer an interpretation, which, I hope, will restore the coherence of Descartes’s dualist theory. I argue that the ‘special modes’ of thinking are special because they are the immediate effects of the body on the mind. They thus depend for their existence on the body because of the general metaphysical principle that “Nothing comes from nothing”. Understood properly, this principle does not contradict the principle about the distinctness of substances.
Discussion of Jonathan Bennett, A note on Descartes and Spinoza
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