The problem of philosophical skepticism relates to the difficulty involved in underwriting the claim that we know anything of spatio-temporal reality. It is often claimed, in fact, that proper philosophical scrutiny reveals quite the opposite from what common sense suggests. Knowledge of external reality is thought to be even quite obviously denied to us as a result of the alleged fact that we all fail to know that certain skeptical scenarios do not obtain. A skeptical scenario is one in which (...) we have neurological occurrences just like any normal situation in which we actually perceive spatio-temporal objects, but where we are deceived in some sense as a result of the manipulation of our brains from some outside source. In this work I attempt to address the problem of philosophical skepticism by claiming that most of us are able to come to know plenty about external reality, since we can come to realize that a certain philosophical theory of perception is correct. The theory I have in mind is what I call a non-cognitive theory of perception. According to this view, perceptual experience is defined by continuous, sensitive behavioral interaction with spatio-temporal objects of the appropriate size, shape, hardness, speed, etc. Knowing that this theory of perception is correct is equivalent to knowing that we know plenty about external reality. This is ultimately because by knowing that a non-cognitive theory of perception is true, we know that any skeptical scenario must fail to obtain. The structure of the work proceeds by first discussing the significance of the problem of philosophical skepticism in some detail. Chapter 1 lays out how the problem does indeed forcefully arise if it is conceded that we fail to know that the skeptical scenarios fail to obtain. Chapter 2 develops the sort of view of our epistemological situation that falls out of accepting without qualification that the problem exists. Chapter 3 examines and criticizes certain popular responses to the skeptical problem. The main goal of these first three preliminary chapters is to indicate that once it is admitted that we fail to know that the skeptical scenarios fail to obtain, the problem of philosophical skepticism forcefully presents itself. Chapter 4, however, attacks the idea that we fail to know that the skeptical scenarios fail to obtain. In this chapter I argue that this idea is wedded to the position that a certain theory of perception is correct. The theory in question is what I call a conjunctive theory of veridical experience. According to this view, normal experience of spatio-temporal objects occurs when a subject has a certain perceptual experience, and that experience also happens to match up with and/or be satisfied by what is really the case. Only when a theory of this sort is assumed, I argue, is the claim that we fail to know that the skeptical scenarios fail to obtain found to be obvious. In chapter 5 I argue that, in fact, a non-cognitive theory, rather than a conjunctive theory, is the correct view to maintain. In the final chapter 6 I develop the epistemological position that falls out of accepting a non-cognitive theory. (shrink)

Self-verifying judgments like _I exist_ seem rational, and self-defeating ones like _It will rain, but I don’t believe it will rain_ seem irrational_._ But one’s evidence might support a self-defeating judgment, and fail to support a self-verifying one. This paper explains how it can be rational to defy one’s evidence if judgment is construed as a mental performance or act, akin to inner assertion. The explanation comes at significant cost, however. Instead of causing or constituting beliefs, judgments turn out to (...) be mere epiphenomena, and self-verification and self-defeat lack the broader philosophical import often claimed for them. (shrink)

In the _Meditations_ and related texts from the early 1640s, Descartes argues that the self can be correctly considered as either a mind or a human being, and that the self’s properties vary accordingly. For example, the self is simple considered as a mind, whereas the self is composite considered as a human being. Someone might object that it is unclear how merely considering the self in different ways blocks the conclusion that a single subject of predication—the self—is both simple (...) and composite, which is contradictory. In response to this objection, this paper develops a reading of Descartes’s various ways of considering the self. I argue that the best reading of Descartes’s qualified claims about the self, i.e., about the self _qua_ mind or the self qua human being, presupposes an account of the unqualified self, that is, of the self _simpliciter_. I argue that the self _simpliciter_ is not a mind, and that it is not a human being either. This result might suggest the pessimistic conclusion that Descartes’s view of the self is incoherent. To avoid this result, I introduce a new metaphysical account of the Cartesian self. On my view, the self is individuated by a unified mental life. The self is constituted by the beings that jointly produce this mental life, and derives its unity from it. (shrink)

Central to Descartes’ philosophy is a view about immutable essences and eternal truths. After mentioning a Platonist account of recollection in Meditation V, Descartes declares that the ideas we have of mathematical notions “are not my invention but have their own true and immutable natures” (AT VII, 64/CSM II, 44).Descartes claims that other important philosophical notions, such as God, mind, body, and human free will (AT VII, 68; AT VIII-2, 348; AT III, 383; AT VII, 433, respectively), also have immutable (...) natures or essences. Although Descartes says a good many things about this view, nowhere does he offer definitive doctrine on the matter, and in fact frequently confuses his reader with apparently inconsistent pronouncements about immutable natures and eternal truths. In this essay, I focus on the immutable natures and propose a solution to two of the main problems associated with Descartes’ position, the metaphysical status of immutable natures and the purported indivisibility of their existence as ideas in the mind. (shrink)

This article offers an interpretation of Descartes’s method of doubt. It wields an examination of Descartes’s pedagogy—as exemplified by The Search for Truth as well as the Meditations—to make the case for the sincerity (as opposed to artificiality) of the doubts engendered by the First Meditation. Descartes was vigilant about balancing the need to use his method of doubt to achieve absolute certainty with the need to compensate for the various foibles of his scholastic and unschooled readers. Nevertheless, Descartes endeavored (...) to instill willful, context-independent, universal doubt across his readership. If all goes well, readers of the Meditations are like method actors; the Meditator is the character they are meant to bring to life, via the method of meditating on reasons for doubt. The article concludes with the suggestion that Descartes was the same kind of skeptic as the early Academic skeptics Arcesilaus and Carneades. (shrink)

This paper argues for a novel solution to the Cartesian Circle by emphasising the important epistemic role of the Second Meditation and Descartes’ faculty epistemology. I argue that, for Descartes: doubt requires a ‘good reason’ to doubt ; whether a reason qualifies as a ‘good reason’ depends on which faculty produces that reason ; and for distinct metaphysical perceptions from the faculty of the intellect, no other faculty can provide ‘good reasons’ to doubt. The upshot of §2 is that the (...) doubts raised up to the Third Meditation do not apply to the distinct metaphysical perceptions of the intellect, and in particular do not apply to the premises of the proof of the existence of God. I present the role of God as primarily to secure clear and distinct perceptions beyond the intellect, and knowledge of conclusions when those conclusions are no longer being clearly and distinctly perceived. Finally, I give an account of Descartes’ use of ‘ cognoscere ’, ‘ scire ’, and ‘ scientia ’ as three distinct epistemic levels, providing a valuable structure within which one can see the meditator progress. (shrink)

In various arguments, Descartes relies on the principles that conceivability implies possibility and that inconceivability implies impossibility. Those principles are in tension with another Cartesian view about the source of modality, i.e. the doctrine of the free creation of eternal truths. In this paper, I develop a ‘two-modality’ interpretation of the doctrine of eternal truths which resolves the tension and I discuss how the resulting modal epistemology can still be relevant for the contemporary discussion.

The aim of this article is to clarify an aspect of Descartes’s conception of mind that seriously impacts on the standard objections against Cartesian dualism. By a close reading of Descartes’s writings on imagination, I argue that the capacity to imagine does not inhere as a mode in the mind itself, but only in the embodied mind, that is, a mind that is not united to the body does not possess the faculty to imagine. As a mode considered as a (...) general property, and not as an instance of it, belongs to the essence of the substance, and as imagination (like sensation) arises from the mind-body union, then the problem arises of knowing to what extent a Cartesian embodied mind is separable from the body. (shrink)

Children and individuals with developmental disabilities compared to typical participants are disadvantaged not only by virtue of being vulnerable to risks inherent in research participation but also by the higher likelihood of exclusion from research altogether. Current regulatory and ethical guidelines although necessary for their protection do not sufficiently ensure fair distributive justice. Yet, in view of disproportionately higher burdens of co-occurring physical and mental disorders in individuals with DD, they are better positioned to benefit from research by equitable participation. (...) Greater elucidation of this ethical dilemma is called for by researchers, institutional review boards, and funding agencies to urgently redress the imbalance. This article discusses many of the regulatory principles to ensure better research participation of children and individuals with DD: human rights, validity, distributive justice, beneficence/nonmaleficence, and autonomy. (shrink)

Vyrauja nuomonė, jog ankstyvoji Descartes’o filosofija angažuojasi metodologinėms problemoms, o tai laikytina naujosios epochos ženklu. Tačiau turint omenyje tokios problematikos išskirtinį aktualumą Aristoteliui bei faktą, kad Descartes’o metodologija aiškiai stokoja apibrėžtumo, jo santykis su ankstesniąja tradicija turėtų būti įvertintas naujai. Straipsnyje siekiama apginti požiūrį, kad „Proto vadovavimo taisyklėse“, savo pirmajame filosofiniame veikale, Descartes’as demonstruoja pastangas duoti tvirtą epistemologinį pagrindą teorinio mąstymo išlaisvinimui iš bet kokių formalių apribojimų. Pateikdamas naują mąstymo procedūrų traktuotę, Descartes’as numato perspektyvų įvairovės galimybę teoriniame reiškinių aiškinime ir (...) šiuo aspektu atsiskleidžia jo originalumas. (shrink)