Berkeley: Philosophy of Mind

In this paper I have the purpose to analyze George Berkeley’s concept of substance. For this goal, it will be necessary first to track the manner that Berkeley was conceiving that concept, that is, how it was determining in his early philosophy and what kind of role had in it. To make this it must be necessary to review the early notes knowing in Spanish as Philosophical Commentaries; and subsequently it will be required to retake the published work, particularly the (...) Principles, where the concept of substance is already taken as Berkeley definitely used it in his immaterialist philosophy. (shrink)

In this paper I expose and analyze the berkeleian proposal of notional knowledge. Among other things, this proposal represents Berkeley´s attempt to know the mind or spirit, that is, the thinking and active thing that, by its own activity, results unrepresentable as idea. As such knowledge is already mentioned in the Philosophical Commentaries I will refer to them to know the origins of that proposal. However, as notional knowledge appears in more detail in later works I will make use especially (...) the Treatise to tackle the complex notional doctrine. -/- . (shrink)

This is a puzzling book. On the one hand, Stoneham insists that “we cannot appreciate the contributions made by philosophers like Berkeley without coming to terms with the full breadth and detail of his thought”. On the other hand, his interpretive efforts are directed almost exclusively at the Three Dialogues between Hylas and Philonous—a work Berkeley intended as a popular recasting of his doctrines and one that scholars generally regard as conspicuously lacking the “full breadth and detail” of his philosophy. (...) There is an evident tension between the goal of thoroughly examining Berkeley’s thought and the chosen means of focusing on the Three Dialogues. This tension arises, in large part, from the fact that Stoneham’s intended audience is not Berkeley scholars, but rather people seriously interested in philosophy and its history, yet lacking significant familiarity with Berkeley’s thought or its background in early modern philosophy. As a way to introduce advanced undergraduates or graduate students to Berkeley, the book is a reasonably successful effort, although there are some significant shortcomings. (shrink)

In the present work Berkeley's theory of vision is considered in its historical origins, in its relation to Berkeley's general philosophical conceptions, and in its early reception. Berkeley's theory replaces an account of vision according to which distance and other spatial properties are deduced from elementary data through an unconscious geometric inference. This account of vision in terms of "natural geometry" was first introduced by Descartes and Malebranche. Among Berkeley's immediate sources of knowledge of the geometric theory of perception, a (...) key role was played by the treatise of dioptrics of William Molyneux, Dioptrica Nova. Berkeley's understanding of "natural geometry" relies closely on Molyneux's description of the mechanism of vision which avoids the complexities of the accounts of Descartes and Malebranche. In the first chapter Berkeley's theory is presented by way of contrast with Molyneux's theory. In the second chapter I consider the relation between the theory of vision and immaterialism. In the final chapter I examine one of the first criticisms of Berkeley's theory, that which is found in William Porterfield's Treatise on the Eye. Dept. of Philosophy. Paper copy at Leddy Library: Theses & Major Papers - Basement, West Bldg. / Call Number: Thesis1997.G72. Source: Masterss International, Volume: 37-01, page: 0076. Adviser: John P. Wright. Thesis --University of Windsor, 1997. (shrink)

In An Essay Towards a New Theory of Vision Berkeley introduces the notion of suggestion as an alternative to those accounts of perception he labels the "mathematicians' account". Both kinds of accounts are offered to explain how we visually perceive the distance of an object which is itself not immediately perceived. I examine in depth the mathematicians' account as found in Descartes, Malebranche and Molyneux, along with Berkeley's several criticisms of this approach. I also explicate Berkeley's alternative theory according to (...) which distance is perceived, not by means of geometrical reasoning, but rather by means of correlations between visual and tactile sensations. ;The foregoing lays the foundation for my central concern, namely Berkeley's theory of perception. Crucial to this theory is Berkeley's notion of suggestion, about which Berkeley says very little. Recent accounts of this notion, found in the writings of Alan Donagan and George Pitcher, characterize Berkeley's notion of suggestion as issuing in a perceptual judgment. I argue that closer attention to the development of the theory, especially in his works following the NTV, reveals that such an interpretation saddles Berkeley with a theory of perception which he attributes to his opponents, one which he explicitly rejects. ;On my interpretation, Berkeley's notion of suggestion is not inferential and does not yield perceptual judgments. Instead, suggestion is an activity of the imagination which retrieves information registered from past visual and tactile experiences, and issues in an expectation of similar sensations. The advantage of this interpretation is twofold. It allows for infants and beasts to perceive objects and their properties, something that distinguishes Berkeley from his predecessors. Furthermore, on this interpretation, Berkeley's theory sharply contrasts with those of Malebranche and Descartes, as Berkeley himself intended; this is a result that is not forthcoming on the Pitcher/Donagan interpretation. I further argue that this analysis of suggestion, with its emphasis on the role of the imagination, accommodates Berkeley's more general view of the mind and serves to underscore the ontological differences between Berkeley and his opponents. (shrink)

This work studies early modern thought concerning the ontology of ideas. I endeavor to establish, contrary to some current scholarship, that the Early Moderns remained firmly in the grip of a substance/mode ontology narrowed from the substance/property distinction inherited from Aristotle. I argue that this traditional dichotomy provides the most philosophically and historically fruitful approach to understanding early modern thought. In particular, I demonstrate how the increasing radicalization in the metaphysics of the moderns is best explained by remaining within the (...) substance/mode ontology. Competing contemporary approaches, especially ones that attempt to employ concepts such as reification and object talk in place of the traditional ontology, do not sufficiently penetrate to the core issues facing the Moderns. Rather than seeking to abandon the categories of substance and mode, the Moderns sought, perhaps vainly, to find room for ideas within it. I proceed by providing background from Aristotle and the Medievals, go on to discuss the philosophical views of Descartes, Malebranche, Arnauld, Locke and Berkeley. The development of idea philosophy culminates in Berkeley, who creates a hybrid ontic category I call 'quasi-substance.' Ideas for Berkeley are ontically dependent on minds , but external to them in the sense that the relationship between ideas and minds are two-place . I demonstrate how this understanding explains the radical metaphysical positions he takes, especially his commitment to perceptual heterogeneity. I conclude that rather than abandoning the traditional ontic categories, the Moderns adhered to them desperately, and thus are best understood through them. (shrink)

This book offers novel interpretations of several of Berkeley's most distinctive philosophical doctrines, including his theory of vision, heterogeneity thesis, anti-abstractionism, immaterialism, likeness principle, and the divine language thesis. Key to those interpretations is a focus on Berkeley's critical use of the Cartesian doctrine of objective presence, which demands causal explanations for the content of sensory ideas.

Minds, Ideas and Objects is a collection of conference papers on the topic of seventeenth- and eighteenth-century theories of ideas or “sensory experience, thought, knowledge and their objects.” At least half the twenty-three papers are by well-known historians of philosophy who seldom disappoint, and there is some equally thought-provoking work among the rest. Some papers say little that is surprising, and some, including good ones, fail to convince, but few are weak. It is perhaps to be expected that coverage of (...) the period is uneven, but chance has played some odd tricks, giving us one paper each on Leibniz and Hume and none on Spinoza, whereas Berkeley excites the attention of six contributors, one more even than Kant. Most philosophers discussed are narrowly canonical, with just a page on Cudworth and only four even on Reid, but there are a couple of welcome articles on the vastly rewarding, until recently seldom studied Arnauld-Malebranche debate. Günter Zöller’s “The Austrian Way of Ideas,” summarizing the views on intentionality of Brentano and his pupils, Twardowski, Meinong, and Husserl, reminds us of the close continuities between early-modern and twentieth-century concerns. (shrink)

In ‘Berkeley and God’, Jonathan Bennett diagnoses Berkeley's intermittent advocacy of the proposition that physical things ‘do sometimes exist when not perceived by any human spirit’ by pinning on him the invalid argument, vitiated by the ambiguity of ‘depend’, from all ideas depend on some spirit or other, via some sensible ideas do not depend on these spirits themselves, to some ideas depend on non-finite spirits.

Species : visions and values -- Fantasies : seeing without what was within -- Prestiges : illusions in magic and art -- Glamours : demons and virtual worlds -- Images : the reformation of the eyes -- Apparitions : the discernment of spirits -- Sights : King Saul and King Macbeth -- Seemings : philosophical scepticism -- Dreams : the epistemology of sleep -- Signs : vision and the new philosophy.

For Berkeley, minds are not Cartesian spiritual substances because they cannot be said to exist (even if only conceptually) abstracted from their activities. Similarly, Berkeley's notion of mind differs from Locke's in that, for Berkeley, minds are not abstract substrata in which ideas inhere. Instead, Berkeley redefines what it means for the mind to be a substance in a way consistent with the Stoic logic of 17th century Ramists on which Leibniz and Jonathan Edwards draw. This view of mind, I (...) conclude, is definitely not the bundle theory that some critics have portrayed it as being. (shrink)