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)

According to the idealist, facts about phenomenal experience determine facts about the physical world. Any such view must account for illusions: cases where there is a discrepancy between the physical world and our experiences of it. In this paper, I critique some recent idealist treatments of illusions before presenting my own preferred account. I then argue that, initial impressions notwithstanding, it is actually the realist who has difficulties properly accounting for illusions.

According to theists, God is an immaterial thinking being. The main question of this article is whether theism supports the view that we are immaterial thinking beings too. I shall argue in the negative. Along the way, I will also explore some implications in the philosophy of mind following from the observation that, on theism, God’s mentality is in a certain respect magical.

According to phenomenalism, physical things are a certain kind of possibility for experience. This paper clarifies the phenomenalist position and addresses some main objections to it, with the aim of showing that phenomenalism is a live option that merits a place alongside dualism and materialism in contemporary metaphysical debate.

Wittgenstein famously introduced the notion of ‘hinge propositions’: propositions that are assumptions or presuppositions of our languages, conceptual schemes, and language games, presuppositions that cannot themselves be rationally established, defended, or challenged. This idea has given rise to an epistemological approach, ‘hinge epistemology’, which itself has important implications for argumentation. In particular, it develops and provides support for Robert Fogelin’s case for deep disagreements: disagreements that cannot be rationally resolved by processes of rational argumentation. In this paper, I first examine (...) hinge epistemology in its own right, and then explore its implications for arguments and the theory of argumentation. I argue that the Wittgensteinian approach to hinge propositions is problematic, and that, suitably understood, they can be rationally challenged, defended, and evaluated; there are no well-formed, coherent propositions, ‘hinge’ or otherwise, that are beyond epistemic evaluation, critical scrutiny, and argumentative support/critique; and good arguments concerning hinge propositions are not only possible but common. My arguments will rely on a thoroughgoing fallibilism, a rejection of ‘privileged’ frameworks, and an insistence on the challengeability of all frameworks, both from within and from without. (shrink)

Berkeleyan idealism, or ‘immaterialism,’ has had an enormous impact on the history of philosophy during the last three centuries. In recent years, Christian scholars have been especially active in exploring ways that Berkeley's thesis may be fruitfully applied to a variety of issues in philosophy and theology. This essay provides an overview of some of the ways Christian philosophers have deployed immaterialism to solve problems and generate insights in metaphysics, philosophy of mind, philosophy of science, philosophy of religion, and philosophical (...) theology. (shrink)

The Introduction to Sartre’s Being and Nothingness (B&N) contains a condensed, cryptic argument – the ‘ontological proof’ – that is meant to establish a position ‘beyond realism and idealism’. Despite its role in establishing the fundamental ontological distinction of B&N – the distinction between being-for-itself and being-in-itself – the ontological proof has received very little scholarly attention. My goal is to fill this lacuna. I begin by clarifying the idealist position Sartre attacks in the Introduction to B&N: Husserl’s idealism as (...) interpreted by Aron Gurwitsch and Roman Ingarden. I then propose a new interpretation of the ontological proof that gives a central role to the transparency of experience. On this interpretation, Sartre argues from the ‘emptiness’ of consciousness – its purely relational nature – to the existence of mind-independent substance (being-in-itself). In assessing the strengths and weaknesses of Sartre’s case against idealism, I put him in critical dialogue with contemporary work in metaphysics and the philosophy of mind. (shrink)

I outline a version of idealism that borrows from Humean Supervenience. The resulting theory is immune to what is often considered to be the most powerful anti-idealist argument, the gist of which is that the idealist can’t supply truthmakers (or an adequate supervenience base) for commonly accepted truths about the physical world. That charge has no purchase on Humean idealism.

Michael Dummett offered a semantic characterisation of a variety of realism-antirealism debates. This approach has fallen out of fashion. This has been to the detriment of metaphysics. This paper offers an accurate characterisation of Dummett’s view, often lacking in the literature, and then defends it against a range of attacks (from Devitt, Miller and Williamson). This understanding of realism debates is resilient, and if we take it seriously the philosophical terrain looks importantly different. In particular, the philosophy of language has (...) a foundational role with respect to metaphysics. (shrink)

Drawing from extensions of existing ideas in the logic of ground, a novel account of the grounds of necessity is presented, the core of which states that necessary truths are necessary because they stand in specific grounding connections.

This paper explores Calkins’ absolute idealism and its ramifications for libertarian free will. Calkins’ metaphysics is a version of absolute idealism, according to which the absolute is a person who has everything else as either a part or an aspect. Three different arguments for the conclusion that Calkins’ metaphysics is incompatible with libertarian freewill are formulated and critically assessed. Finally, I assess the extent to which these arguments are independent of each other.

This paper explores the influence of Henri Bergson’s (1859–1941) philosophy of time on three early twentieth-century British philosophers: Karin Costelloe-Stephen (1889–1953), Hilda Oakeley (1867–1950), and May Sinclair (1863–1946). I demonstrate that three central claims of Bergson’s account of temporal experience (novelty, memory, and indivisibility) were creatively incorporated into their accounts of time. All these philosophers place time at the centre of their philosophical systems, so this study of their views on time and temporality can deepen our understanding of their systems (...) more broadly. Further, this study helps us appreciate the reception of Bergson’s thought in British philosophy after it was ferociously attacked by Bertrand Russell in 1912, and can provide more detailed contours on the joint fortunes of temporal experience and Bergson's thought in the history of twentieth-century philosophy. I conclude by emphasizing reasons why contemporary philosophers should pay particular attention to the three figures’ treatment of Bergson. (shrink)

In an extension of speculations that physical space–time is a fractal which might itself be embedded in a high-dimensional continuum, it is hypothesized to “compensate” for local variations of the fractal dimension by instead varying the metric in such as way that the intrinsic dimensionality remains an integer. Thereby, an extrinsic fractal continuum is intrinsically perceived as a classical continuum. Conversely, it is suggested that any variation of the metric from its Euclidean form can be “shifted” to nontrivial fractal topology. (...) Thereby “holes” or “gaps” in spacetime could give rise to curvature. (shrink)