History: Skepticism

_ Source: _Volume 8, Issue 3, pp 167 - 191 This paper presents an original, ambitious, truth-directed transcendental argument for the existence of an ‘external world’. It begins with a double-headed starting-point: Stroud’s own remarks on the necessary conditions of language in general, and Hegel’s critique of the “fear of error.” The paper argues that the sceptical challenge requires a particular critical concept of thought as that which may diverge from reality, and that this concept is possible only through reflection (...) on situations of error, in which how things are thought to be diverges from how things really are with independent items in an objective world. The existence of such a world is therefore a necessary condition of the possibility of scepticism: such scepticism is therefore false. I defend the argument against objections from Stroud’s sceptic and others. Drawing on Heidegger, the paper concludes by indicating that the chain of necessary conditions includes practical engagement with the world. (shrink)

In the Refutation of Idealism, Kant aims to defeat the Cartesian radical skeptical hypothesis that empirical reality might not exist and we cannot have knowledge of it. Kant intends to demonstrate that conscious experience presupposes direct experience of empirical reality. This paper presents new challenges to the conclusions Kant reaches in the Refutation. Kant’s argument turns on the claim that the past must exist, and my challenges concern the possibility that there is no past.

Sample (2015) argues that scientists ought not to believe that their theories are true because they cannot fulfill the epistemic obligation to take the diachronic perspective on their theories. I reply that Sample’s argument imposes an inordinately heavy epistemic obligation on scientists, and that it spells doom not only for scientific theories but also for observational beliefs and philosophical ideas that Samples endorses. I also delineate what I take to be a reasonable epistemic obligation for scientists. In sum, philosophers ought (...) to impose on scientists only an epistemic standard that they are willing to impose on themselves. (shrink)

The essay is a comparative look at Descartes' and Pascal's epistemology. For so vast a topic, I shall confine myself to comparing three crucial epistemological topics, through which I hope to evince Descartes' and Pascal's differences and points of contact. Firstly, I will concentrate on the philosophers' engagement with skepticism, which, for each, had different functions and motivations. Secondly, the thinkers' relation to Reason shall be examined, since it is the fulcrum of their thought—and the main aspect that separates them. (...) Lastly, I will examine each philosopher's theist epistemology; this section, of course, will focus on how and by what means Descartes and Pascal set out to prove God's existence. The latter aspect shall take us back to each philosopher's relationship to Doubt: the title, " The Giants of Doubt ", in fact, implies a fundamental link between Descartes and Pascal through Doubt. In addition, and most importantly, the contrast between the two thinkers' epistemology inaugurates a decisive scission in modern thought of enormous repercussion: Descartes' sturdy rationalism initiated the great branch of modern scientific inquiry , while Pascal's appeal to the power of intuition and feelings would eventually be the precursor of the reaction to the enlightenment that invested Europe by the second half of the eighteenth century. This departure of thought, which in my view may be traced back to them, has not been the common conceit of the history of philosophy: the reaction to the enlightenment has customarily been regarded as stemming from its internal contradictions or at best from its more radical doctrines. The essay shall show that these strands of thought were both parallel and born out of the antithetical epistemologies of Descartes and Pascal. (shrink)

En este artículo reconstruyo y analizo las respuestas de los escépticos académicos a la objeción de apraxia. Esta objeción afirma que el escepticismo es una doctrina imposible de practicar puesto que sus tesis conducen a la apraxia, esta es, un estado de privación o imposibilidad de acción. Las respuestas a la objeción se dividen en dos clases. La primera prueba que el asentimiento no es una condición necesaria para realizar acciones, por lo que la recomendación escéptica de suspender global y (...) permanentemente el asentimiento no conduciría a la apraxia. La segunda prueba que es posible deliberar y orientar racionalmente nuestras acciones sin impresiones aprehensivas, por lo que la tesis escéptica de que no existen impresiones aprehensivas tampoco conduciría a la apraxia. Tras unas breves consideraciones generales, en la primera parte de este artículo presento las respuestas de Arcesilao y en la segunda parte las repuestas de Carnéades. -/- In this paper, I reconstruct and analyze the Academic skeptics’ responses to the apraxia objection. This objection claims that the scepticism is a doctrine impossible to be put into practice because its theses lead to apraxia, that is, a state of lack or impossibility of action. The responses to the objection are divided into two kinds. The first one proves that assent is not a necessary condition to perform actions, so the skeptical advice to globally and wholly suspend assent does not lead to apraxia. The second one proves that it is possible to deliberate and rationally lead our actions without apprehensive impressions, so the skeptical thesis that apprehensive impressions do not exist does not lead to apraxia either. After some general considerations, in the first section of this paper I discuss Arcesilaus’ responses and in the second section Carneades’ responses. (shrink)

En este artículo argumento que, pese al llamado “escepticismo cartesiano”, el significado y alcance de la refutación cartesiana del escéptico y del ateo pueden comprenderse a la luz de tres hitos metafísicos. En la primera sección examino de qué forma este filósofo emplea argumentos escépticos como método, no como fin. Tal como enfatizo, el cogito es el punto en que la duda hiperbólica debe detenerse. Luego, en la segunda sección, discuto por qué Descartes es contrario al fideísmo. Debido a que (...) este se relaciona con el escepticismo, y con la imposibilidad de probar la existencia de Dios, Descartes prueba que Él existe. Sostengo, en la sección final, que Dios es garante de la certeza epistemológica, incluso en el caso de las ideas claras y distintas, cuya confiabilidad pareciera en peligro debido a la hipótesis escéptica del genio maligno. Según el francés, entonces, probar que Dios existe es necesario para garantizar el conocimiento cierto, y es base para inferir la existencia del mundo externo. Los tres hitos, entonces, parecen suficientes para delimitar el sentido y alcance del llamado escepticismo cartesiano. (shrink)

This is a defense of Pyrrhonian skepticism against the charge that the suspension of judgment based on equipollence is vitiated by the assent given to the equipollence in question. The apparent conflict has a conceptual side as well as a practical side, examined here as separate challenges with a section devoted to each. The conceptual challenge is that the skeptical transition from an equipollence of arguments to a suspension of judgment is undermined either by a logical contradiction or by an (...) epistemic inconsistency, perhaps by both, because the determination and affirmation of equipollence is itself a judgment of sorts, one that is not suspended. The practical challenge is that, independently of any conceptual confusion or contradiction, suspending judgment in reaction to equipollence evinces doxastic commitment to equipollence, if only because human beings are not capable of making assessments requiring rational determination without believing the corresponding premises and conclusions to be true. The two analytic sections addressing these challenges are preceded by two prefatory sections, one laying out the epistemic process, the other reviewing the evidentiary context. The response from the conceptual perspective is that the suspension of judgment based on equipollence is not a reasoned conclusion adopted as the truth of the matter but a natural reaction to an impression left by the apparently equal weight of opposing arguments. The response from the practical perspective is that the acknowledgment of equipollence is not just an affirmation of the equal weight of arguments but also an admission of inability to decide, suggesting that any assent, express or implied, is thrust upon the Pyrrhonist in a state of epistemic paralysis affecting the will and the intellect on the matter being investigated. This just leaves a deep disagreement, if any, regarding whether equipollence is an inference based on discursive activity or an impression coming from passive receptivity. But this, even if resolved in favor of the critic (which it need not and ought not be), is not the same as confusion or inconsistency on the part of the Pyrrhonist, the demonstration of which is the primary aim of this paper. (shrink)

I argue that some of the most prominent interpretations of Reid's response to skepticism marginalize a crucial aspect of his thought: namely, that our common sense beliefs meet whatever normative standards of rationality the skeptic might fairly demand of them. This should be seen as supplementary to reliabilist or proper functionalist interpretations of Reid, which often ignore this half of the story. I also show how Reid defends the rationality of believing first principles by appealing to their naturalness and irresistibility. (...) The resulting interpretation supplies Reid with a more satisfying and formidable response to the skeptic than interpretations currently offer. (shrink)

G.E. Moore’s writings on external world skepticism show us, in broad outline, how to dispense with external world skepticism in a way that is satisfying, intellectually responsible, and yet avoids engaging in constructive epistemological theory-building altogether. His work thus reveals something very important about the relation between epistemology and ordinary life, and also about what it would take to reach a satisfying resolution of certain sorts of perennial philosophical problems.

Descartes propõe, como atitude àquele que pretende fazer ciência, colocar tudo em dúvida. Como veremos, tal proposta restringe-se ao plano ou domínio da investigação da verdade, o qual é distinto do plano ou domínio da conduta da vida. Tal restrição é fundamental para a própria possibilidade da dúvida metódica, e torna o método da dúvida um análogo das posições críticas usuais dos cientistas em relação aos discursos não justificados. Além de ser possibilitado pela restrição ao domínio da investigação científica, e (...) ser um tipo de postura crítica, o método da dúvida mostra-se adequado para o debate com o tipo de oponente epistemológico que Descartes tinha em seu tempo. (shrink)

Summary, page 467: "This book is concerned with the influence of Hume’s metaphysics and moral philosophy in 18th-century Europe and it is divided into two main parts. The first part is focused on the exposition of Hume’s metaphysics and moral philosophy in their historical context, because this topic is still mostly unknown in Croatia. The second part deals with the influence of Hume’s metaphysics and moral philosophy on selected European thinkers of the Age of Enlightenment until the beginning of the (...) French Revolution in 1789.". (shrink)

This paper assesses both the practical and the epistemic value of Pyrrhonism as this stance is described in Sextus Empiricus’s extant writings. It first explores whether the Pyrrhonist’s suspension of judgment and undisturbedness make us behave in a moral or immoral way, and whether they allow us to attain those goals that would make it possible to live well. It then examines whether the Pyrrhonist’s suspension of judgment makes it possible to reach the epistemic goals of attaining truth and avoiding (...) error. It finally considers whether the results of the previous analyses show that Pyrrhonism is of no philosophical interest to a contemporary audience. (shrink)

_ Source: _Volume 5, Issue 1, pp 29 - 54 This essay argues that the exploration of scepticism and its implications in the work of Stanley Cavell and David Hume bears more similarities than is commonly acknowledged, especially along the lines of what I wish to call “sceptical naturalism.” These lines of similarity are described through the way each philosopher relates the “natural” and “nature” to the universal, the necessary, and the conventional.

Artikkelissa otan kantaa niin sanottuun voluntarismikiistaan Descartesin tahdon käsitykseen ja arvostelmateoriaan liittyen kannattaen epäsuoraa voluntarismia. Käsittelen erityisesti kysymystä voiko tahdolla Descartesin mukaan olla suora kontrolli ihmisen arvostelmasta pidättäytymiseen? Pitkään vallassa olleen tulkintasuuntauksen mukaan Descartesin käsityksessä tahdolla on kyky vaikuttaa doksastisiin tiloihin suoraan, pelkällä tahdon aktilla. Tätä kutsutaan suoraksi voluntarismiksi ja se tarkoittaa lyhyesti sanottuna sitä, että meillä on kyky hyväksyä, olla hyväksymättä sekä pidättäytyä arvostelemasta täysin tahdonvaraisesti. Tässä tekstissä kannatan kuitenkin epäsuoraa voluntarismia: tahto kykenee vaikuttamaan doksastiseen tilaan epäsuorasti vaikuttamalla uskomuksen (...) muodostamisen kannalta olennaisiin toimintoihin, erityisesti vahvoihin perusteisiin keskittymiseen. Argumentoin epäsuoran voluntarismin puolesta seuraavin tavoin: 1) Kohdat, joiden katsotaan puoltavan suoraa voluntarismia, voidaan yhtä lailla tulkita puoltamaan myös epäsuoraa voluntarismia, 2) Epäsuora voluntarismi on sekä filosofisesti että psykologisesti uskottavampi tulkinta siitä, kuinka ihminen arvostelmia muodostaa, ja 3) Epäsuora negatiivinen voluntarismi on koherentimpi ja ristiriidattomampi tulkinta epäilyn metodin käytöstä (siis yleisestä arvostelmasta pidättäytymisestä) Ensimmäisessä mietiskelyssä. (shrink)

Descartes' demon is a deceiver: the demon makes things appear to you other than as they really are. However, as Descartes famously pointed out in the Second Meditation, not all knowledge is imperiled by this kind of deception. You still know you are a thinking thing. Perhaps, though, there is a more virulent demon in epistemic hell, one from which none of our knowledge is safe. Jonathan Schaffer thinks so. The "debasing demon" he imagines threatens knowledge not via the truth (...) condition on knowledge, but via the basing condition. This demon can cause any belief to seem like it's held on a good basis, when it's really held on a bad basis. Several recent critics grant Schaffer the possibility of such a debasing demon, and argue that the skeptical conclusion doesn't follow. By contrast, we argue that on any plausible account of the epistemic basing relation, the "debasing demon" is impossible. Our argument for why this is so gestures, more generally, to the importance of avoiding common traps by embracing mistaken assumptions about what it takes for a belief to be based on a reason. (shrink)

This chapter considers Kant's relation to Hume as Kant himself understood it when he wrote the Critique of Pure Reason and the Prolegomena. It first seeks to refine the question of Kant's relation to Hume's skepticism, and it then considers the evidence for Kant's attitude toward Hume in three works: the A Critique, Prolegomena, and B Critique. It argues that in the A Critique Kant viewed skepticism positively, as a necessary reaction to dogmatism and a spur toward critique. In his (...) initial statement of the critical philosophy Kant treated Hume as an ally in curbing dogmatism, but one who stopped short of what was really needed: a full critique of reason, to establish the boundaries of metaphysical cognition. Kant found fault with Hume's analyses of cognition and experience, and specifically his failure to see the crucial importance of synthetic a priori cognition in metaphysics. In particular, he held that Hume's empiricist account of cognition could neither explain the synthetic a priori cognition actually found in mathematics and natural science, nor provide a principled account of the limits on what can be known--and what can be thought--through the pure concepts of the understanding. According to Kant, Hume therefore failed in his attempt to determine the limits of metaphysics, whereas he was able to succeed because his transcendental philosophy provided a thorough account of cognition, its structure and limits. In the Prolegomena and the B Critique Kant distinguished his position more sharply from Hume's. He also adopted a more negative attitude toward "skeptical idealism" than before; but he attributed such skepticism to Descartes, not Hume. Prior to the B Critique Kant did not see Hume as attacking natural science or ordinary cognition. In none of the three works was Kant's main aim to "answer the skeptic." His primary aim was to firmly establish the boundary of metaphysics, by discovering the elements of human cognition and fixing its proper domain. His purported discoveries about the limits of metaphysical cognition meant that the traditional objects of metaphysical knowledge, God, the soul, and the world as it is in itself, are unknowable, hence that traditional metaphysics itself is impossible. Besides settling the possibility or impossibility of metaphysics, his findings would also prevent the illegitimate extension of principles of sensibility to God and the noumenal self, an extension that would threaten the metaphysics of morals by incorrectly denying the thinkability of noumenal freedom, and that might otherwise lead to "materialism, fatalism, atheism, and freethinking unbelief" (B xxxiv). (shrink)

According to the reading offered here, Descartes' use of the meditative mode of writing was not a mere rhetorical device to win an audience accustomed to the spiritual retreat. His choice of the literary form of the spiritual exercise was consonant with, if not determined by, his theory of the mind and of the basis of human knowledge. Since Descartes' conception of knowledge implied the priority of the intellect over the senses, and indeed the priority of an intellect operating independently (...) of the senses, and since, in Descartes' view, the untutored individual was likely to be nearly wholly immersed in the senses, a procedure was needed for freeing the intellect from sensory domination so that the truth might be seen. Hence, the cognitive exercises of the Meditations, modeled not on the sense- and imagination-based exercises of Ignatius of Loyola, but on the Augustinian procedure of turning away from the senses and imagination to perceive the unpicturable with the fleshless eye of the mind. In accordance with this reading, the function of Descartes' skeptical arguments is not to introduce skepticism so that it can be defeated but to aid the meditator in withdrawing the mind from the senses in order to attend to truths of the pure intellect. These truths then offer the basis for a new natural philosophy, including a new theory of the senses. (shrink)

In Philosophy and the Mirror of Nature (1979), Richard Rorty locates the perceived ills of modern philosophy in the "epistemological turn" of Descartes and Locke. This chapter argues that Rorty's accounts of Descartes' and Locke's philosophical work are seriously flawed. Rorty misunderstood the participation of early modern philosophers in the rise of modern science, and he misdescribed their examination of cognition as psychological rather than epistemological. His diagnostic efforts were thereby undermined, and he missed Descartes' original conception of a general (...) physics, and Locke's probabilist analysis of the grounds for rational belief. (shrink)

This essay deals with a selected part of an epistemological controversy provided by Tūsī in response to the skeptical arguments reported by Rāzī that is related to what might be called "intellectual skepticism," or skepticism regarding the judgments of the intellect, particularly in connection with self-evident principles. It will be shown that Rāzī has cited and exposed a position that seems to be no less than a medieval version of empiricism. Tūsī, in contrast, has presented us with a position that (...) rejects such empiricism. The comparative aim of this essay is to draw attention to some similarities as well as some points of divergence between the kind of skeptical debate we are focusing on here, and some relevant epistemological discussions in the later traditions in the West. ". (shrink)

There are two major puzzles in Hume’s epistemology. The first involves Hume’s fall into despair in the conclusion of Book One of the Treatise. When Hume reflects back upon the results of his research, he becomes so alarmed that he nearly throws his books and papers into the fire. Why did his investigations push him towards such intense skeptical sentiments? What dark discoveries did he make? The second puzzle concerns the way in which Hume emerges from this skeptical crisis and (...) proceeds with his investigations. Why the sudden change of heart? What accounts for the return of hope? Each of these puzzles represents a serious challenge to traditional approaches to Hume’s epistemology. A proper solution to them requires a careful examination of Hume’s claims about the untrustworthiness of our cognitive faculties as well as his strategy for improving their performance. (shrink)

There is a set of texts in the history of ancient skepticism that have not been widely understood. Michael Frede has done much to set these texts in their proper context, but his work has not gotten the appreciation it deserves. Historians have tended to think that ancient skepticism in the Clitomachian-Pyrrhonian tradition is the suspension of belief on all matters and that Frede’s attempt to show otherwise is confused. This may turn out to be correct, but Frede’s interpretation, as (...) I think it should be understood, is more plausible and interesting than is usually thought. Frede has made it possible to see the skeptics in the Clitomachian-Pyrrhonian tradition as taking some of the first steps in working out the philosophical view that epistemic justification is a matter of whether a belief is the sustained outcome of a correct cognitive process and that correctness here need not and perhaps should not be understood in terms of modal reliability. (shrink)

Hegel's philosophy aims at responding to the questions raised by modern scepticism concerning the accessibility of the external world, of other minds, and of one's own mind. A key-role in Hegel's argumentative strategy against modern scepticism is played here by Hegel's theory of recognition. Recognition mediates the constitution of individual self-consciousness and intersubjectivity: self-knowledge is not logically independent of the awareness of other minds. At the same time, recognition institutes the possibility of objective reference to the world. In this way, (...) in Hegel the theory of recognition furnishes a unitary response to the threefold sceptical issue of the accessibility of the external world, of other minds, and of one's own mind. The reference to a common world of public objects is thus possible only thanks to the mediation of recognitive capacities that are naturally possessed and socially articulated, which make possible the triangulation between self, world and others. (shrink)

This article deals with the question of skepticism within Hegel's Phenomenology. The article reconstructs the role played by the tropes of ancient skepticism in Hegel's criticism of foundationalism and monological thinking. Furthermore, the skeptical method applied by Hegel is read as a sort of negative dialectics that is constitutive of a relational theory of rationality, and which culminates in his conception of the Absolute Knowing as speculative tropology.

The purpose of the present paper is twofold. First, to examine what beliefs, if any, underlie (a) the Pyrrhonist’s desire for ataraxia and his account of how this state may be attained, and (b) his philanthropic therapy, which seeks to induce, by argument, ejpochv and ataraxia in the Dogmatists. Second, to determine whether the Pyrrhonist’s philanthropy and his search for and attainment of ataraxia are, as scholars have generally believed, essential aspects of his stance.

Considering three philosophers – Ghazali , Hume, and Kant – we perceive that they were at grips with skepticism and each had a different attitude towards it. While Hume remains in a skeptical sphere, Ghazali and Kant offer solutions for skepticism, although their solutions differ largely. Criticizing Aristotle’s view on essential necessity, Ghazali expands Avicenna’s emphasis on experimentation and, in effect, negates the necessary relation between cause and effect. Ghazali preceded Hume in this regard for some 6 centuries and put (...) forward Hume’s main idea. In order to overcome skepticism, Kant appealed to rationality and it’s a priori backgrounds, while Ghazali put forward God’s will and put the emphasis on the inner direct experience. It will be argued that God’s deeds, rationality and faith should be compatible in principle. (shrink)

This paper attempts to reconstruct Hume's argument in Treatise 1.4.1, 'Of Scepticism with Regard to Reason'.

A. A. Long, one of the world's leading writers on ancient philosophy, presents eighteen essays on the philosophers and schools of the Hellenistic and Roman periods--Epicureans, Stoics, and Sceptics. The discussion ranges over four centuries of innovative and challenging thought in ethics and politics, psychology, epistemology, and cosmology.

: Thoreau's journal contains a number of passages which explore the nature of perception, developing a response to skeptical doubt. The world outside the human mind is real, and there is nothing illusory about its perceived beauty and meaning. In this essay, I draw upon the work of Stanley Cavell (among others) in order to frame Thoreau's reflections within the context of the skeptical questions he seeks to address. Value is not a subjective projection, but it also cannot be perceived (...) without the appropriate kind of emotional orientation or attunement toward the world: that is, an attitude of trust or acceptance. Without this affective receptivity, or "perceptual faith," our knowledge of reality is limited. The beliefs we hold onto in the face of objective uncertainty establish the framework within which we make particular evaluations, and in this sense they are a necessary condition of practical reason. Every understanding has its mood. (shrink)

Abū Hāmid al-Ghazālī (1058–1111 c.e .) is well known, among other things, for his account, in al-Munqidh min al-ḍalāl (Deliverance from error), of a struggle with philosophical skepticism that bears a striking resemblance to that described by Descartes in the Meditations . This essay aims to give a close comparative analysis of these respective accounts, and will concentrate solely on the processes of invoking or entertaining doubt that al-Ghazālī and Descartes describe, respectively. In the process some subtle differences between them (...) in this regard will be brought to light that are relevant to the comparative issue of the respective solutions at which they arrive. The latter issue will not be touched upon here, although the present discussion is intended as a prelude to a future treatment of that topic. (shrink)

A long critical notice of Michael Forster's recent book, "Kant and Skepticism." We argue that Forster's characterization of Kant's response to skepticism is both textually dubious and philosophically flawed. -/- .

British Journal for the History of Philosophy, Volume 19, Issue 3, Page 573-579, May 2011.

There are some tantalizing suggestions that Pyrrhonian skepticism has its roots in ancient India. Of them, the most important is Diogenes Laertius’s report that Pyrrho accompanied Alexander to India, where he was deeply impressed by the character of the “naked sophists” he encountered (DL IX 61). Influenced by these gymnosophists, Pyrrho is said to have adopted the practices of suspending judgment on matters of belief and cultivating an indifferent composure amid the vicissitudes of ordinary life. Such conduct, and the attitudes (...) that it embodied, became inspirations to later skeptical thinkers. It is a fact that practices of the sort attributed to Pyrrho are richly evident in a number of ancient Indian philosophical and ascetic movements. On this basis, attempts have been made to determine the identity of these gymnosophists and, further, to pinpoint the dialectical tropes within Pyrrhonism that may have their basis in Indian thought. But despite these attempts, and in the absence of any new discoveries, these suggestions will likely remain just that. The paucity of the historical data and the problematic nature of the data itself prevent us from reconstructing a solid bridge between ancient India and Greek skepticism that may serve as the basis of robust historical theorizing. Classical India does, however, lay claim to a sophisticated and diverse culture of epistemological reflection, which includes a number of innovative skeptical thinkers deserving study on their own merits. This chapter is meant to provide such a study, or perhaps more accurately, a prolegomena for such. After some initial ground-laying, I will discuss three leading Indian skeptics and situate them historically and conceptually within the network of competing schools that comprise classical Indian philosophy. They are Nāgārjuna (c. 150 CE), the founder of Madhyamaka Buddhism, Jayarāśi (c. 800), associated with the Indian materialist tradition, and Śrīharṣa (c. 1150), a thinker connected to the school of Nondual (Advaita) Vedānta. (shrink)

(Shoshana Smith now goes by her married name, Shoshana Brassfield: http://philpapers.org/profile/37640) Descartes famously claims that everything we perceive clearly and distinctly is true. Although this rule is fundamental to Descartes’s theory of knowledge, readers from Gassendi and Leibniz onward have complained that unless Descartes can say explicitly what clear and distinct perception is, how we know when we have it, and why it cannot be wrong, then the rule is empty. I offer a detailed analysis of clear and distinct perception, (...) showing how Descartes answers these questions. Many doubts about the usefulness of the clarity and distinctness rule arise from the mistaken assumption that in clear and distinct perception, like sense perception, we must be able to establish a correspondence between perception and reality before we can have knowledge. I show that Descartes has a different metaphysical picture of clear and distinct perception. Clear and distinct perception is direct perception, typically of essences. On this view, by relying on the intellect instead of the senses, we can have direct perception not only of our own ideas, but also of a mind-independent reality. Because clear and distinct perception is direct perception, problems of correspondence do not arise. My account of clear and distinct perception also yields unique insight into other issues in Descartes, such as the Cartesian Circle and the doctrine of the free creation of the eternal truths. Completed at the University of California, 2005. Dissertation advisers: Janet Broughton, Hannah Ginsborg, Anthony A. Long. ProQuest UMI: 3187156. (shrink)

The purpose of this paper is twofold: to discuss some challenging issues concerning Sextus’ works and outlook, and to offer an overview of the influence exerted by Sextan Pyrrhonism on both early modern and contemporary philosophy.

Anthony Brueckner argues that Berkeleyan idealism lacks anti-sceptical force because of the way Berkeley draws the appearance/reality distinction. But Brueckner's case rests on a misunderstanding of Berkeley's view. Properly understood, Berkeleyan idealism does indeed have anti-sceptical force.

The Socratic Paradox (that only Socrates is wise, and only because only he recognizes our lack of wisdom) is explained, elaborated and defended. His philosophical scepticism is distinguished from others (Pyrrhonian, Cartesian, Humean, Kripkean Wittgenstein, etc.): the doubt concerns our understanding of our beliefs, not our justification for them; the doubt is a posteriori and inductive, not a priori. Post-Socratic philosophy confirms this scepticism: contra-Descartes, our ideas are not transparent to us; contra-Verificationism, no criterion distinguishes sense from nonsense. The import (...) of this scepticism for professional ethicists is examined. (shrink)

The goal of this article is twofold. First, it revises the historiographic partition proposed by John Deely in Four Ages of Understanding (2001) by arguing that the moment marking the beginning of philosophical Modernity has been vividly recorded in Descartes’ Meditations on First Philosophy with the experiment with the wax. Second, an upshot of this historical study is that it helps make sense of Deely’s somewhat iconoclastic use of the words “subject” and “subjectivity” to designate mind-independent worldly things. The hope (...) is that successfully accomplishing these twin tasks will give semiotic inquiry a better appreciation of its own history, as well as resources genial to furthering its ongoing development. (shrink)

In the Essay Concerning Human Understanding, Locke insists that all knowledge consists in perception of the agreement or disagreement of ideas. However, he also insists that knowledge extends to outer reality, claiming that perception yields ‘sensitive knowledge’ of the existence of outer objects. Some scholars have argued that Locke did not really mean to restrict knowledge to perceptions of relations within the realm of ideas; others have argued that sensitive knowledge is not strictly speaking a form of knowledge for Locke. (...) This chapter argues that Locke’s conception of sensitive knowledge is in fact compatible with his official definition of knowledge, and discusses his treatment of the problem of skepticism, both in the Essay and in the correspondence with Stillingfleet. (shrink)