This paper introduces the reader to the medieval Hebrew tradition of logic by considering its treatment of Aristotelian syllogistic. Starting in the thirteenth century European Jews translated Arabic and Latin texts into Hebrew and produced commentaries and original compendia.Because they stood culturally and geographically at the cross-roads of two great traditions they were influenced by both.This is clearly seen in the development of syllogistic theory, where the Latin tradition ultimately replaces, though never entirely, its Arabic counterpart.Specific attention is devoted to (...) the debate about the so-called Galenian fourth figure.In medieval Hebrew logic one finds both defenders and detractors of the figure, the former appearing towards the beginning of the period in question.With the ascendancy of scholastic logic the fourth figure virtually disappears from Hebrew texts. (shrink)

In various writings Maimonides claims that God’s knowledge encompasses sublunar things, including human affairs, that we are incapable of understanding the nature of this knowledge, and that the term “knowing” is equivocal when said of God and of humans. In the fourteenth century these claims were given widely divergent interpretations. According to Levi ben Gershom (Gersonides, 1288–1344), Maimonides was compelled by religious considerations to maintain that God knows sublunar particulars in all their particularity, and to adopt a position that was (...) diametrically opposed to the Aristotelian one. By contrast, Moses of Narbonne (Narboni, d.1362) found Maimonides’ views on divine knowledge to be identical with those of the “ancient philosophers,” that is to say, the Peripatetics, as presented by Averroes. Whether ultimately convincing or not, Narboni’s Averroist interpretation forces the reader to admit that Maimonides shares a great deal more in common with Averroes on this topic than is often thought. By examining briefly the view of Maimonides and Averroes on these matters I hope to make Narboni’s interpretation appear less far-fetched. (shrink)

The ArgumentIt is well known that theTractatusof Peter of Spain (later Pope John XXI) was one of the most popular logic textbooks in the Middle Ages and early Renaissance. Less known is theTractatus'sconsiderable reputation and diffusion among the Jews, as evidenced by five translations, two commentaries, and what appears to be anabbreviatio— if not of theTractatusitself, then of a similar work. The present article attempts to understand the phenomenon of theTractatus'spopularity and offers an analysis of the three translations whose authors (...) are known — those by Shemaryah ha-Ikriti (Greece, early to mid-fourteenth century), Abraham Abigdor (late fourteenth century), and Judah b. Samuel Shalom (either Italy or Spain, mid-fifteenth century) — and their subsequent fate. The more popular versions of Abraham Abidgor and Judah Shalom provided Jewish students, many of whom would likely become physicians, with a grounding in logic comparable to that of their Christian counterparts. (shrink)

The Jewish Philosophy Reader is the first comprehensive anthology of classic writings on Jewish philosophy from the Bible to postmodernism. The Reader is clearly divided into four separate parts: Foundations and First Principles, Medieval and Renaissance Jewish Philosophy, Modern Jewish Thought, and Contemporary Jewish Philosophy. Each part is clearly introduced by the editors. The readings featured are representative writings of each era listed above and are from the following major thinkers: Abrabanel, Baeck, Bergman, Borowitz, Buber, Cohen, Crescas, Fackenheim, Geiger, Gersonides, (...) Goodman, Graetz, Halevi, Hartman, Heschel, Hess, Hirsch, Ibn Ezra, Ibn Gabirol, Ibn Paquda, Kellner, Kook, Krochmal, Leibowitz, Levinas, Maimonides, Maybaum, Mendelssohn, Novak, Philo, Plaskow, Rosenzweig, Saadia, Scholem, Seeskin, Soloveitchik, Spinoza, Strauss, Wolf, Zunz. (shrink)

It is strange, indeed, to have devoted one's life to an obscure topic and to sense it suddenly as a focus of political passion. It is also a unique opportunity: when a country like France, so long a victim of protectionism, makes ready to give it a new impetus, when another, the United States, hopefully cured, envisages it as the stock issue of an electoral campaign, it is fitting to search for motivations which preserve world-wide restrictive practices no longer defensible (...) in theory. Thus, a comportment is discovered first found in international trade then invading the most variegated fields and explaining in large measure the rise of the day's great problems: unemployment, the financial crisis and the armament race. (shrink)

“States have no morality, they have interests,” remarked an overzealous diplomat. And in this same manner we sometimes see that reasons of state take priority over moral rules. A sweet young thing testifying before a committee of the United State Congress said “sometimes you have to put yourself above the law,” no doubt repeating something that had been said to her. At a time when unrestrained application of the reasons of state can only lead to violence that can no longer (...) be sustained, we can judge to what extent such remarks are without foundation. (shrink)

A transnational enterprise is an information and decision system that directs the common strategy of business establishments operating under several jurisdictions; its objective is precise and concrete: it is to realize a profit by producing and selling goods or services, computers perhaps or hamburgers, or leisure, under such names as I.B.M. or VW, McDonald or Club Mediterranée.

“States have no morality, they have interests,” remarked an overzealous diplomat. And in this same manner we sometimes see that reasons of state take priority over moral rules. A sweet young thing testifying before a committee of the United State Congress said “sometimes you have to put yourself above the law,” no doubt repeating something that had been said to her. At a time when unrestrained application of the reasons of state can only lead to violence that can no longer (...) be sustained, we can judge to what extent such remarks are without foundation. (shrink)

Translation of and Foreword to Charles H. Kahn's "Language and Ontology".

Im 12. Jahrhundert ging in Byzanz eine bemerkenswerte Blute des Aristotelismus von einem philosophischen Zirkel aus, den die vom politischen Leben ausgeschlossene Kaisertochter Anna Komnene unterhielt. Eustratios von Nikaia und Michael von Ephesos arbeiteten zusammen an einem Kommentar zur Nikomachischen Ethik im Auftrage Annas. Eustratios kommentierte die Bucher I und VI, Michael von Ephesos die Bucher V, IX und X. Ausserdem liegen von Michael mehrere Kommentare zur Naturphilosophie des Aristoteles vor, wahrend wir von Eustratios den hier wiedergegebenen Kommentar zu Buch (...) II der Analytica posteriora besitzen. Die lateinische Ubersetzung des Posteriora-Kommentars (zusammen mit einer kurzen anonymen Erklarung des Werkes) durch den Mediziner Andrea Grazioli leitete eine neue Epoche in der Deutung der aristotelischen Wissenschaftstheorie ein. (shrink)

This book proposes a new paradigm for the interpretation of Plato's early and middle dialogues. Rejecting the usual assumption of a distinct 'Socratic' period in the development of Plato's thought, this view regards the earlier works as deliberate preparation for the exposition of Plato's mature philosophy. Differences between the dialogues do not represent different stages in Plato's own thinking but rather different aspects and moments in the presentation of a new and unfamiliar view of reality. Once the fictional character of (...) the Socratic genre is recognised, there is no reason to regard Plato's early dialogues as representing the philosophy of the historical Socrates. The result is a unified interpretation of all of the dialogues down to the Republic and the Phaedrus. (shrink)

This book proposes a new paradigm for the interpretation of Plato's early and middle dialogues. Rejecting the usual assumption of a distinct 'Socratic' period in the development of Plato's thought, this view regards the earlier works as deliberate preparation for the exposition of Plato's mature philosophy. Differences between the dialogues do not represent different stages in Plato's own thinking but rather different aspects and moments in the presentation of a new and unfamiliar view of reality. Once the fictional character of (...) the Socratic genre is recognised, there is no reason to regard Plato's early dialogues as representing the philosophy of the historical Socrates. The result is a unified interpretation of all of the dialogues down to the Republic and the Phaedrus. (shrink)

The propensity interpretation of fitness (PIF) is commonly taken to be subject to a set of simple counterexamples. We argue that three of the most important of these are not counterexamples to the PIF itself, but only to the traditional mathematical model of this propensity: fitness as expected number of offspring. They fail to demonstrate that a new mathematical model of the PIF could not succeed where this older model fails. We then propose a new formalization of the PIF that (...) avoids these (and other) counterexamples. By producing a counterexample-free model of the PIF, we call into question one of the primary motivations for adopting the statisticalist interpretation of fitness. In addition, this new model has the benefit of being more closely allied with contemporary mathematical biology than the traditional model of the PIF. (shrink)

Philosophy of science is expanding via the introduction of new digital data and tools for their analysis. The data comprise digitized published books and journal articles, as well as heretofore unpublished material such as images, archival text, notebooks, meeting notes, and programs. The growth in available data is matched by the extensive development of automated analysis tools. The variety of data sources and tools can be overwhelming. In this article, we survey the state of digital work in the philosophy of (...) science, showing what kinds of questions can be answered and how one can go about answering them. (shrink)

Recent arguments concerning the nature of causation in evolutionary theory, now often known as the debate between the 'causalist' and 'statisticalist' positions, have involved answers to a variety of independent questions – definitions of key evolutionary concepts like natural selection, fitness, and genetic drift; causation in multi-level systems; or the nature of evolutionary explanations, among others. This Element offers a way to disentangle one set of these questions surrounding the causal structure of natural selection. Doing so allows us to clearly (...) reconstruct the approach that some of these major competing interpretations of evolutionary theory have to this causal structure, highlighting particular features of philosophical interest within each. Further, those features concern problems not exclusive to the philosophy of biology. Connections between them and, in two case studies, contemporary metaphysics and philosophy of physics demonstrate the potential value of broader collaboration in the understanding of evolution. (shrink)

Through criticism and analysis of ancient traditions, Kahn reconstructs the pattern of Anaximander’s thought using historical methods akin to the reconstructive techniques of comparative linguists.

Plato's late dialogues have often been neglected because they lack the literary charm of his earlier masterpieces. Charles Kahn proposes a unified view of these diverse and difficult works, from the Parmenides and Theaetetus to the Sophist and Timaeus, showing how they gradually develop the framework for Plato's late metaphysics and cosmology. The Parmenides, with its attack on the theory of Forms and its baffling series of antinomies, has generally been treated apart from the rest of Plato's late work. (...) Kahn shows that this perplexing dialogue is the curtain-raiser on Plato's last metaphysical enterprise: the step-by-step construction of a wider theory of Being that provides the background for the creation story of the Timaeus. This rich study, the natural successor to Kahn's earlier Plato and the Socratic Dialogue, will interest a wide range of readers in ancient philosophy and science. (shrink)

There is a widespread assumption that the universe in general, and life in particular, is 'getting more complex with time'. This book brings together a wide range of experts in science, philosophy and theology and unveils their joint effort in exploring this idea. They confront essential problems behind the theory of complexity and the role of life within it: what is complexity? When does it increase, and why? Is the universe evolving towards states of ever greater complexity and diversity? If (...) so, what is the source of this universal enrichment? This book addresses those difficult questions, and offers a unique cross-disciplinary perspective on some of the most profound issues at the heart of science and philosophy. Readers will gain insights in complexity that reach deep into key areas of physics, biology, complexity science, philosophy and religion. (shrink)

A fascinating portrait of the Pythagorean tradition, including a substantial account of the Neo-Pythagorean revival, and ending with Johannes Kepler on the threshold of modernism.

The Rise of Chance in Evolutionary Theory: A Pompous Parade of Arithmetic explores a pivotal conceptual moment in the history of evolutionary theory: the development of its extensive reliance on a wide array of concepts of chance. It tells the history of a methodological and conceptual development that reshaped our approach to natural selection over a century, ranging from Darwin’s earliest notebooks in the 1830s to the early years of the Modern Synthesis in the 1930s. Far from being a “pompous (...) parade of arithmetic,” as one early critic argued, evolution transformed during this period to make these conceptual and technical tools indispensable. This book charts the role of chance in evolutionary theory from its beginnings to the earliest days of modern evolutionary theory, making it an ideal resource for evolutionary biologists, historians, philosophers, and researchers in science studies or biological statistics. (shrink)

Two fundamental business ethics issues that repeatedly surface in the academic literature relate to business's role in the development of public policy [Suarez, S. L.: 2000, Does Business Learn? (The University of Michigan Press, Ann Arbor, MI); Roberts, R. W. and D. D. Bobek: 2004, Accounting, Organizations and Society 29(5-6), 565-590] and its role in responsibly managing the natural environment [Newton, L.: 2005, Business Ethics and the Natural Environment (Blackwell Publishing, Oxford)]. When studied together, researchers often examine if, and how, (...) corporations influence environmental policy decisions. Drawing from literatures on corporate political activity, corporate social and environmental performance, and corporate environmental disclosure, we develop and empirically examine two research questions concerning the relations between corporate political expenditures, environmental performance, and environmental disclosure. The questions are: (1) Do corporations that are poorer environmental performers spend more on political activities than their better-performing counterparts? (2) Is there an association between corporations' spending on political activities and the extent of their financial report environmental disclosures? We investigated these questions through analyses of data we gathered on a sample consisting of 119 U.S. environmentally sensitive firms for the 2001-2002 election cycle. After controlling for firm size and specific industry effects, our tests reveal a significant, inverse relationship between firm environmental performance and political spending. This is consistent with the notion that U.S. firms with relatively poorer environmental performance records engage more intensely in corporate political activities as part of their overall strategic management of their relationship with the state. In addition, a significant and positive association between the amount of political spending and the extent of environmental disclosure suggests that environmental disclosure and political spending are both proactive, complementary tactics to strategically manage public policy pressure. If corporations' strategies are intentionally designed to unreasonably limit their environmental responsibilities or to misrepresent firm environmental performance, then we argue that these activities reflect a significant lapse in ethical conduct. (shrink)

My aim here is to make sense of Plato's account of desire in the middle dialogues. To do that I need to unify or reconcile what are at first sight two quite different accounts: the doctrine of eros in the Symposium and the tripartite theory of motivation in the Republic. It may be that the two theories are after all irreconcilable, that Plato simply changed his mind on the nature of human desire after writing the Symposium and before composing the (...) Republic. But that conclusion can be justified only if attempts to reconcile the two theories end in failure. The attempt must be made first. (shrink)

This volume presents a series of essays published by Charles Kahn over a period of forty years, in which he seeks to explicate the ancient Greek concept of ...

It has long been recognized that cancer onset and progression represent a type of reversion to an ancestral quasi‐unicellular phenotype. This general concept has been refined into the atavistic model of cancer that attempts to provide a quantitative analysis and testable predictions based on genomic data. Over the past decade, support for the multicellular‐to‐unicellular reversion predicted by the atavism model has come from phylostratigraphy. Here, we propose that cancer onset and progression involve more than a one‐off multicellular‐to‐unicellular reversion, and are (...) better described as a series of reversionary transitions. We make new predictions based on the chronology of the unicellular‐eukaryote‐to‐multicellular‐eukaryote transition. We also make new predictions based on three other evolutionary transitions that occurred in our lineage: eukaryogenesis, oxidative phosphorylation and the transition to adaptive immunity. We propose several modifications to current phylostratigraphy to improve age resolution to test these predictions. Also see the video abstract here: https://youtu.be/3unEu5JYJrQ. (shrink)

The idea of ‘reversion’ or ‘atavism’ has a peculiar history. For many authors in the latenineteenth and early-twentieth centuries – including Darwin, Galton, Pearson, Weismann, and Spencer, among others – reversion was one of the central phenomena which a theory of heredity ought to explain. By only a few decades later, however, Fisher and others could look back upon reversion as a historical curiosity, a non-problem, or even an impediment to clear theorizing. I explore various reasons that reversion might have (...) appeared to be a central problem for this first group of figures, focusing on their commitment to a variety of conceptual features of evolutionary theory; discuss why reversion might have then ceased to be an interesting phenomenon; and, finally, close with some more general thoughts about the death of scientific problems. (shrink)

Behind the superficial obscurity of what fragments we have of Heraclitus' thought, Professor Kahn claims that it is possible to detect a systematic view of human existence, a theory of language which sees ambiguity as a device for the expression of multiple meaning, and a vision of human life and death within the larger order of nature. The fragments are presented here in a readable order; translation and commentary aim to make accessible the power and originality of a systematic thinker (...) and the first great master of artistic prose. The commentary locates Heraclitus within the tradition of early Greek thought, but stresses the importance of his ideas for contemporary theories of language, literature and philosophy. (shrink)

The poem of Parmenides is the earliest philosophic text which is preserved with sufficient completeness and continuity to permit us to follow a sustained line of argument. It is surely one of the most interesting arguments in the history of philosophy, and we are lucky to have this early text, perhaps a whole century older than the first dialogues of Plato. But the price we must pay for our good fortune is to face up to a vipers' nest of problems, (...) concerning details of the text and the archaic language but also concerning major questions of philosophic interpretation. These problems are so fundamental that, unless we solve them correctly, we cannot even be clear as to what Parmenides is arguing for, or why. And they are so knotted that we can scarcely unravel a single problem without finding the whole nest on our hands. (shrink)

Landauer's principle, often regarded as the basic principle of the thermodynamics of information processing, holds that any logically irreversible manipulation of information, such as the erasure of a bit or the merging of two computation paths, must be accompanied by a corresponding entropy increase in non-information-bearing degrees of freedom of the information-processing apparatus or its environment. Conversely, it is generally accepted that any logically reversible transformation of information can in principle be accomplished by an appropriate physical mechanism operating in a (...) thermodynamically reversible fashion. These notions have sometimes been criticized either as being false, or as being trivial and obvious, and therefore unhelpful for purposes such as explaining why Maxwell's Demon cannot violate the second law of thermodynamics. Here I attempt to refute some of the arguments against Landauer's principle, while arguing that although in a sense it is indeed a straightforward consequence or restatement of the Second Law, it still has considerable pedagogic and explanatory power, especially in the context of other influential ideas in nineteenth and twentieth century physics. Similar arguments have been given by Jeffrey Bub. (shrink)

There are a bewildering variety of claims connecting Darwin to nineteenth-century philosophy of science—including to Herschel, Whewell, Lyell, German Romanticism, Comte, and others. I argue here that Herschel’s influence on Darwin is undeniable. The form of this influence, however, is often misunderstood. Darwin was not merely taking the concept of “analogy” from Herschel, nor was he combining such an analogy with a consilience as argued for by Whewell. On the contrary, Darwin’s Origin is written in precisely the manner that one (...) would expect were Darwin attempting to model his work on the precepts found in Herschel’s Preliminary Discourse on Natural Science. While Hodge has worked out a careful interpretation of both Darwin and Herschel, drawing similar conclusions, his interpretation misreads Herschel’s use of the vera causa principle and the verification of hypotheses. The new reading that I present here resolves this trouble, combining Hodge’s careful treatment of the structure of the Origin with a more cautious understanding of Herschel’s philosophy of science. This interpretation lets us understand why Darwin laid out the Origin in the way that he did and also why Herschel so strongly disagreed, including in Herschel’s heretofore unanalyzed marginalia in his copy of Darwin’s book. (shrink)

The philosophy of the Presocratics still governs scholarly discussion today. This important volume grapples with a host of philosophical issues and philological and historical problems inherent in interpreting Presocratic philosophers.

There are two motivations commonly ascribed to historical actors for taking up statistics: to reduce complicated data to a mean value (e.g., Quetelet), and to take account of diversity (e.g., Galton). Different motivations will, it is assumed, lead to different methodological decisions in the practice of the statistical sciences. Karl Pearson and W. F. R. Weldon are generally seen as following directly in Galton’s footsteps. I argue for two related theses in light of this standard interpretation, based on a reading (...) of several sources in which Weldon, independently of Pearson, reflects on his own motivations. First, while Pearson does approach statistics from this "Galtonian" perspective, he is, consistent with his positivist philosophy of science, utilizing statistics to simplify the highly variable data of biology. Weldon, on the other hand, is brought to statistics by a rich empiricism and a desire to preserve the diversity of biological data. Secondly, we have here a counterexample to the claim that divergence in motivation will lead to a corresponding separation in methodology. Pearson and Weldon, despite embracing biometry for different reasons, settled on precisely the same set of statistical tools for the investigation of evolution. (shrink)

One potentially extremely fruitful use of the tools of corpus analysis in the philosophy of science is to help us understand disputed terrains within the sciences that we study. For philosophers of biology, for instance, few controversies are as heated as those over the concepts we use in taxonomy to classify the living world, with the definition of ‘species’ perhaps most fundamental among them. As many understandings of biodiversity, in turn, involve counting the number of species present in a given (...) area, these taxonomic concepts thus become crucially implicated in our efforts in conservation biology and our response to climate change. In this chapter, we present a corpus of taxonomic journal papers, and illustrate how it might be used to make progress in the history and philosophy of taxonomy. What parts of the biological world do taxonomists most often study? Are these areas of focus related to other methodological commitments, or perhaps to their underlying conceptual disagreement? Are species that are more important to conservation, or economic concerns, or more important to local cultures, more or less likely to be the target of biological study? Corpus-based methods, we argue, are uniquely powerful for approaching questions such as these, and we hope that the case we present can serve as a fruitful example for others considering their implementation. (shrink)