Louis Loeb has argued that Hume is pessimistic while Peirce is optimistic about the attainment of fully stable beliefs. In contrast, we argue that Hume was optimistic about such attainment but only if the scope of philosophical investigation is limited to first-order explanatory questions. Further, we argue that Peirce, after reformulating the pragmatic maxim to accommodate the reality of counterfactuals, was pessimistic about such attainment. Finally, we articulate and respond to Peirce's objection that Hume's skeptical arguments in T 1.4.1 and (...) his commitment to common sense indicate that Hume was confused about whether we could have stable beliefs at all. (shrink)

This essay points to parallel criticisms made by Charles Peirce and Polanyi against the “critical method”or “method of doubt.” In an early set of essays (1868–1869) and in later work, Peirce claimed that the Cartesian method of doubt is both philosophically bankrupt and useless because practitioners do not apply the method upon the criteria of doubting itself. Likewise, in his 1952 essay “The Stability of Beliefs” and in Personal Knowledge, Polanyi charges practitioners of the critical method with a failure to (...) apply the method rigorously enough. Polanyi contends that “critical” philosophers apply the method of doubt only to beliefs they find distasteful and rarely ever to the tacit beliefs that make doubt possible. (shrink)

In this paper we assess two sides of the debate concerning biomedical enhancement. First, the idea that biomedical enhancement should be prohibited on the grounds that it degrades human nature; second, that biomedical enhancement can in principle remove the source of moral evil. In so doing, we will propose a different notion of human nature, what we shall call the agato-teleological idea of human nature, and its implications for a philosophical understanding of the human body. Also, we will point out (...) why it seems unreasonable to think that bodily enhancement is sufficient to guarantee moral progress. Finally, we will propose the idea that our technological societies are in need of a new moral virtue, what we shall call the virtue of non-conservative bodily integrity. (shrink)

In lieu of an abstract, here is the first paragraph: Paksi and Héder’s Guide to Personal Knowledge (hereafter GPK and Guide) is, as the title suggests, a guide of the most important and original ideas of Michael Polanyi’s book Personal Knowledge: Towards a Post-Critical Philosophy (1958, hereafter PK). Is a guide to Personal Knowledge needed? I think the answer is a resounding “yes” for many new readers. To see why, let’s briefly review two common complaints about PK.

Before the early 1990s, accounts of classical American philosophy paid relatively little attention to the work and intellectual contributions of women philosophers. However, as early as 1991, a number of contemporary feminist philosophers and historians began to devote more focused attention to women philosophers whose intellectual achievements had been marginalized or forgotten. One woman philosopher whose contributions have still gone unnoticed is that of American logician, mathematician, and color theorist Christine Ladd-Franklin. This paper argues that Ladd-Franklin's feminist efforts to increase (...) the opportunities for women in professional academia were influenced not only by her work as a woman scientist and her reading of feminist literature but also by her understanding of pragmatism and her interaction with Charles Peirce. Specifically, Ladd-Franklin's arguments to increase academic research positions for women and her criticisms of male-only scientific societies point out how discrimination on the basis of gender violates Peirce's first rule of reason that one ought not block the road to inquiry and expose the unscientific nature of gender discrimination by contrasting the pragmatic meaning of acquiring a doctorate with the institutional practice of barring women from making intellectual contributions by denying them professorial positions. (shrink)

One dimension of a comprehensive semantic and semiotic theory is its explanation of how a wide-variety of linguistic expressions designate singular objects. The bulk of scholarship on Peirce's theory of proper names has aligned his theory with the so called new theory of reference by drawing connections between proper names qua rhematic indexical legisigns and various aspects of Kripke's theory of names.2 Recent scholarship has navigated away from indexing Kripke-Peirce affinities and has begun the process of articulating a semiotic or (...) pragmatic theory of names that is distinctly Peircean. For example.. (shrink)

Scholarship on borderline vagueness pinpoints Russell's 1923 essay titled “Vagueness” as the starting point for rigorous analysis. The importance of Russell's work over and above discussions of indeterminacy in antiquity and in the modern period is that Russell isolated borderline vagueness from indeterminacies that do not threaten classical logic. This paper argues that historical propriety concerning the analysis of borderline vagueness belongs to Peirce since he was the first to show that borderline vagueness is distinct from other forms of indeterminacy (...) (e.g., generality, unspecificity, and uninformativeness) and that the application of vague predicates to borderline cases involves an intrinsic uncertainty. (shrink)

This paper assesses a recent criticism of Michael Polanyi’s account of the origin of complex entities by Alicia Juarrero. According to Juarrero, Polanyi took higher-level complex entities like machines and organisms to come into existence through the imposition of external, top-down forces. This paper argues that while Polanyi took the emergence of machines to come about in such a way, Polanyi’s reading of 19th and early 20th-Century experimental embryology indicates his position is more sophisticated. Polanyi appears to have thought a (...) synthesis was possible between reductive-mechanical and holistic-vitalistic approaches in embryology and he appears to have relied on this synthesis in his account of the origin of complex organisms. While I argue that this synthesis is unclear, it suggests that Polanyi conceived of the emergence of organisms as the result of internal, complex, and non-deterministic processes. (shrink)

Take a hypothetical sequence of human beings ordered by height from tallest to shortest. Make sure there is no more than a difference of a millimeter between each person and make sure the tallest person is clearly tall and the shortest person is clearly not tall. Now consider the following argument: P1 A person of height n is tall ; P2 For any height n, if n is tall, then n–1mm is tall ; C Therefore, a person of height n (...) = 1mm is tall. P1 and P2 are intuitively true, C is intuitively false, yet the argument is deductively valid (the conclusion follows... (shrink)

Brimming with visual examples of concepts, derivation rules, and proof strategies, this introductory text is ideal for students with no previous experience in logic. Students will learn translation both from formal language into English and from English into formal language; how to use truth trees and truth tables to test propositions for logical properties; and how to construct and strategically use derivation rules in proofs.

This essay presents the use-first-and-investigate-later (UFAIL) approach to technological use through two case studies: the atomic bomb in World War II and chemical defoliants during the Vietnam War. The methodology of UFAIL is as follows: despite limited understanding of an array of potential effects (medical, environmental, etc.), technology users employ a commitment to ex post facto investigations of these effects. In generalizing these cases, the essay argues (a) that failure to check rapid technological uptake will result in continued disaster and (...) (b) the abatement of the negative consequences of UFAIL is a more tempered approach to the infiltration of technologies into society by rigorous and preemptive investigation into the potential effects of a technology. (shrink)

This is a comment on Tihamér Margitay’s “From Epistemology to Ontology,” where he criticizes Polanyi’s claim that there is a systematic correspondence between the levels of ontology and the levels of tacit knowing. Margitay contends that Polanyi supports this correspondence by appealing to a “purely ontological argument,” one which concludes that it is impossible to reduce machines to a singular, chemical-physical type, and criticizes this claim by pointing to industrial standards (machines that do reduce to singular physical-chemical type). I respond (...) to Margitay’s claim by distinguishing two different “purely ontological arguments” in Polanyi’s thought (one relying on the multi-realizability of a machine in different physical-chemical types, the other pointing to the inability of a purely physical-chemical ontology to account for the artificial shaping and functioning of machines). With these two arguments clarified, Margitay’s criticism by appealing to industrial standards loses much of its initial force. (shrink)

This is a comment on Tihamér Margitay’s “From Epistemology to Ontology,” where he criticizes Polanyi’s claim that there is a systematic correspondence between the levels of ontology and the levels of tacit knowing. Margitay contends that Polanyi supports this correspondence by appealing to a “purely ontological argument,” one which concludes that it is impossible to reduce machines to a singular, chemical-physical type, and criticizes this claim by pointing to industrial standards (machines that do reduce to singular physical-chemical type). I respond (...) to Margitay’s claim by distinguishing two different “purely ontological arguments” in Polanyi’s thought (one relying on the multi-realizability of a machine in different physical-chemical types, the other pointing to the inability of a purely physical-chemical ontology to account for the artificial shaping and functioning of machines). With these two arguments clarified, Margitay’s criticism by appealing to industrial standards loses much of its initial force. (shrink)

While a number of classical pragmatists crafted their philosophies in conjunction with a careful study of Hegel's works, others saw their philosophies emerge in antagonism with proponents of Hegel. In this paper, we offer an instance of the latter case. Namely, we show that the impetus for Charles S. Peirce's early articulation and avowal of realism (the claim that some generals are real) was William Torrey Harris's claim that the formal laws of logic lacked universal validity. According to Harris, the (...) leading representative of Hegelism in the United States, the universal validity of the laws of logic rested on a nominalistic metaphysics that a Hegelian-realism showed to be false. In response to this charge, we articulate how Peirce's attempt to prove the universal validity of the laws of logic resulted in avowing a realism that differed from both nominalism and Harris's Hegelian-realism. (shrink)