George Berkeley maintains both anti-abstractionism (that abstract ideas are impossible) and idealism (that physical objects and their qualities are mind-dependent). Some scholars (including Atherton, Bolton, and Pappas) have argued, in different ways, that Berkeley uses anti-abstractionism as a premise in a simple argument for idealism. In this paper, I argue that the relation between anti-abstractionism and idealism in Berkeley's metaphysics is more complex than these scholars acknowledge. Berkeley distinguishes between two kinds of abstraction, singling abstraction and generalizing abstraction. He then (...) rests his case for idealism, not on the denial of the possibility of generalizing abstraction, but rather on the denial of the possibility of singling abstraction. Moreover, Berkeley's argument does not rest on a blanket rejection of all forms of singling abstraction. Rather, the fundamental anti-abstractionist assumption, for his purposes, is the claim that primary qualities cannot be mentally singled out from secondary qualities. Crucially, the claim that the existence of physical objects cannot be mentally singled out from their being perceived is not a premise in, but rather a consequence of, Berkeley's argument for idealism. Berkeley's argument therefore avoids circularity inasmuch as it appeals to the impossibility of singly abstracting one idea in order to establish the impossibility of singly abstracting another. (shrink)

The defense of common sense in Berkeley's Three Dialogues is, first and foremost, a defense of the gardener's claim to know this cherry tree, a claim threatened by both Cartesian and Lockean philosophy. Berkeley's defense of the gardener's knowledge depends on his claim that the being of a cherry tree consists in its being perceived. This is not something the gardener believes; rather, it is a philosophical analysis of the rules unreflectively followed by the gardener in his use of the (...) word 'exists'. It is by following these rules that the gardener gains knowledge of the cherry tree. Uncovering these deep connections between Berkeley's epistemology and his philosophy of language and placing them in the context of his critique of both Cartesian and Lockean philosophy will clarify Berkeley's strategy for bringing his reader back to common sense and practical engagement in the ordinary affairs of life. (shrink)

Most philosophers have given up George Berkeley’s proof for the existence of God as a lost cause, for in it, Berkeley seems to conclude more than he actually shows. I defend the proof by showing that its conclusion is not the thesis that an infinite and perfect God exists, but rather the much weaker thesis that a very powerful God exists and that this God’s agency is pervasive in nature. This interpretation, I argue, is consistent with the texts. It is (...) also an important component of Berkeley’s philosophical project, which consists of launching many small arguments against his philosophical and theological opponents. (shrink)

It is sometimes suggested that Berkeley adheres to an empirical criterion of meaning, on which a term is meaningful just in case it signifies an idea (i.e., an immediate object of perceptual experience). This criterion is thought to underlie his rejection of the term ‘matter’ as meaningless. As is well known, Berkeley thinks that it is impossible to perceive matter. If one cannot perceive matter, then, per Berkeley, one can have no idea of it; if one can have no idea (...) of it, then one cannot speak meaningfully of it. But if this is Berkeley’s position, then there is a puzzle, because Berkeley also explicitly claims that it is impossible to perceive/have ideas of minds. So if he is relying on a criterion on which terms get their meaning by referring to ideas, then, just as Berkeley rejects talk of material substance, so, too, must he reject talk of mental substance. Famously, however, Berkeley insists that there is no parity between the cases of material and mental substance. It is typically suggested that the disparity between matter and minds rests on the fact that although one cannot strictly speaking perceive minds, nonetheless Berkeley thinks that one can have experiential access to minds via reflection, and that this access allows for meaningful talk of minds. Of course, one can only have reflective experience of one’s own mind. But what of other minds, which one cannot reflectively experience? Here the usual tactic is to suppose that, although one cannot have direct reflective experience of other minds, nonetheless one can indirectly experience such minds via analogy to our own minds, and that this indirect experience grounds the meaningfulness of talk of other minds. In this paper, I argue that the reasoning behind Berkeley’s ‘likeness principle,’ that an idea can only be like another idea, can be generalized to argue against this experience-based account of our access to other minds. I claim instead that Berkeley allows for the meaningfulness of talk of other minds by expanding the criterion of meaning in a different way. I argue that Berkeley holds a criterion of meaning on which a term is meaningful just in case it signifies either an object of experience or an object that one has reason to posit on the basis of experience, i.e., an object that is necessary to explain our experiences. When an object is neither experienced nor explains our experiences, then and only then is Berkeley willing to reject it as meaningless. Thus he writes of “the word matter,” that “it is no matter whether there is such a thing or no, since it no way concerns us: and I do not see the advantage there is in disputing about we know not what, and we know not why” (Principles, §77.) The word is not meaningless merely because we do not know what matter might be; it is meaningless because we also do not know why it should be. Correspondingly, I argue that the term ‘mind’ is meaningful because although we have no experience of minds, nonetheless they play an important role in explaining our experiences. (shrink)

In a familiar limerick attributed to Ronald Knox, the narrator asks how a “tree/should continue to be/when there’s no one about in the Quad,” and is subsequently reassured that its continuous existence is guaranteed by God’s being “always about in the Quad” observing it. This is meant to capture Berkeley’s so‐called ‘continuity argument’ for the existence of God, on which the claim that objects exist continuously over time is supposed to entail the existence of a Divine Mind that continuously perceives (...) the ideas that constitute those objects. But the continuity argument is not an uncontroversial one. For one thing, we might ask what divine perception is supposed to be like – does God perceive all of the ideas that we do, and in the same way that we do? And if so, does this mean that God perceives pain – that God suffers? For another thing, we might ask whether Berkeley is entitled to the claim that objects exist continuously to begin with. In this paper, I look at some of the problems associated with the continuity argument, and then present a reading of divine perception that attempts to prevent these problems from arising at the outset. (shrink)

Berkeley holds that objects in the world are constituted of ideas. Some commentators argue that for Berkeley, ideas are identical to acts of perception; this is taken to proceed from his view that ideas are like pains. In this paper, I evaluate the identity claim. I argue that although it does not follow from the pain analogy, nonetheless the texts suggest that Berkeley does think ideas and acts are identical. I show how Berkeley can account for objects persisting over time (...) and being perceivable by multiple observers, even if the ideas that constitute them are intermittent and dependent on particular actors. (shrink)

We argue that prevailing definitions of Berkeley’s idealism fail to rule out a nearby Spinozist rival view that we call ‘mind-body identity panpsychism.’ Since Berkeley certainly does not agree with Spinoza on this issue, we call for more care in defining Berkeley’s view. After we propose our own definition of Berkeley’s idealism, we survey two Berkeleyan strategies to block the mind-body identity panpsychist and establish his idealism. We argue that Berkeley should follow Leibniz and further develop his account of the (...) mind’s unity. Unity—not activity—is the best way for Berkeley to establish his view at the expense of his panpsychist competitors. (shrink)

To the great puzzlement of his readers, Berkeley begins by arguing that nothing exists other than minds and ideas, but concludes by claiming to have defended the existence of bodies. How can Berkeley's idealism amount to such a defense? I introduce resources from Berkeley's philosophy of language, and especially his analysis of the discourse of physics, to defend a novel answer to this question. According to Berkeley, the technical terms of physics are meaningful despite failing to designate any reality; their (...) meaningfulness derives from the useful role they play in organizing and predicting our experience. I argue that Berkeleian bodies have the same status as these theoretical entities: they are mere 'quasi-entities' introduced by our ways of speaking and thinking in order to serve our practical purposes. Berkeley nevertheless considers this to be a defense of the existence of bodies because he endorses a radically deflationary semantics for 'exists.'. (shrink)

In this paper I defend the view that Berkeley endorses a spirit-idea dualism, and I explain what this dualism amounts to. Central to the discussion is Berkeley's claim that spirits and ideas are "entirely distinct." Taken as a Cartesian real distinction, the "entirely distinct" claim seems to be at odds with Berkeley's view that spirits are substances that support ideas by perceiving them. This has led commentators to deflate Berkeley's notion of "entire distinction" by reading it as analogous to the (...) categorical distinction between substance and accident. I argue that rather than taking Berkeley's notion of "entire distinction" in either of these ways, it ought to be understood as insisting upon a radical dissimilitude between spirits and ideas. This dissimilitude requires that ideas cannot be viewed as analogous to modes or accidents which inhere in a substance. Moreover, spirits and ideas cannot be understood in terms of a single, gradated scale of reality. Instead, for Berkeley spirits and ideas occupy two entirely different scales of reality and consequently the very term 'thing' applies to them in different senses. In this way, Berkeley endorses a severe dualism that occurs at the highest level of his ontology. En este trabajo defiendo que Berkeley sostiene un dualismo espíritu-idea y explico qué significa tal dualismo. Es central en la discusión la afirmación de Berkeley que los espíritus y las ideas son "totalmente distintos". Considerada como una distinción real cartesiana, la tesis "totalmente distintos" parece estar en tensión con la concepción de Berkeley de que los espíritus son sustancias que "support ideas by perceiving them". Esto ha llevado a los comentadores a disminuir la noción de Berkeley de "distinción total" leyéndola como un análogo a la distinción categorial entre sustancia y accidente. Yo argumento que en lugar de considerar a la noción de Berkeley de "distinción total"en alguno de esos modos, debe ser comprendida como insistiendo en una radical diferencia entre espíritus e ideas. Esta diferencia requiere que las ideas no se vean como análogas a modos o accidentes de la sustancia. Además espíritus e ideas no pueden ser entendidos en términos de una única escala graduada de realidad. En cambio para Berkeley espíritus e ideas ocupan dos escalas totalmente distintas de realidad y en consecuencia, el término mismo "cosa" se aplica en sentidos distintos. De este modo, Berkeley sostiene un dualismo severo que acaece al más alto nivel de su ontología. (shrink)

Traditionally, religious doctrines and practices have been divided into two categories. Those that purport to be justified by natural reason alone are said to be part of natural religion, while those which purport to be justified only by appeal to supernatural revelation are said to be part of revealed religion. One of the central aims of Berkeley's philosophy is to understand and defend both the doctrines and the practices of both natural and revealed (Christian) religion. This chapter will provide a (...) survey of this aspect of Berkeley's thought. (shrink)