In this paper, we approach the idea of group cognition from the perspective of the “extended mind” thesis, as a special case of the more general claim that systems larger than the individual human, but containing that human, are capable of cognition (Clark, 2008; Clark & Chalmers, 1998). Instead of deliberating about “the mark of the cognitive” (Adams & Aizawa, 2008), our discussion of group cognition is tied to particular cognitive capacities. We review recent studies of group problem-solving and group (...) memory which reveal that specific cognitive capacities that are commonly ascribed to individuals are also aptly ascribed at the level of groups. These case studies show how dense interactions among people within a group lead to both similarity-inducing and differentiating dynamics that affect the group's ability to solve problems. This supports our claim that groups have organization-dependent cognitive capacities that go beyond the simple aggregation of the cognitive capacities of individuals. Group cognition is thus an emergent phenomenon in the sense of Wimsatt (1986). We further argue that anybody who rejects our strategy for showing that cognitive properties can be instantiated at multiple levels in the organizational hierarchy on a priori grounds is a “demergentist,” and thus incurs the burden of proof for explaining why cognitive properties are “stuck” at a certain level of organizational structure. Finally, we show that our analysis of group cognition escapes the “coupling-constitution” charge that has been leveled against the extended mind thesis (Adams & Aizawa, 2008). (shrink)

This volume provides a guide to the discussion among biologists and philosophersabout the role of concepts such as function and design in an evolutionary understanding oflife.

Religion within the Boundaries of Mere Reason is a key element of the system of philosophy which Kant introduced with his Critique of Pure Reason, and a work of major importance in the history of Western religious thought. It represents a great philosopher's attempt to spell out the form and content of a type of religion that would be grounded in moral reason and would meet the needs of ethical life. It includes sharply critical and boldly constructive discussions on topics (...) not often treated by philosophers, including such traditional theological concepts as original sin and the salvation or 'justification' of a sinner, and the idea of the proper role of a church. This volume presents it and three short essays that illuminate it in new translations by Allen Wood and George di Giovanni, with an introduction by Robert Merrihew Adams that locates it in its historical and philosophical context. (shrink)

This volume collects for the first time in a single volume all of Kant's writings on religion and rational theology. These works were written during a period of conflict between Kant and the Prussian authorities over his religious teachings. His final statement of religion was made after the death of King Frederick William II in 1797. The historical context and progression of this conflict are charted in the general introduction to the volume and in the translators' introductions to particular texts. (...) All the translations are new with the exception of The Conflict of the Faculties, where the translation has been revised and re-edited to conform to the guidelines of the Cambridge Edition. As is standard with all the volumes in this edition, there are copious linguistic and explanatory notes, and a glossary of key terms. (shrink)

This Volume contains seven works of Kant, newly translated and edited, with Introductions. What does it mean to orient oneself in thinking? 1786 (Allen Wood) On the miscarriage of all philosophical trials in theodicy. 1791 (George di Giovanni Religion within the boundaries of mere reason. 1793 (George di Giovanni) The end of all things. 1794 (Allen Wood) The conflict of the faculties. 1798 (Mary J. Gregor & Robert Anchor) Preface to Reinhold Bernhard Jackmann's examination of the (...) Kantian Philosophy of Religion. 1800 (Allen W. Wood) Lectures on the philosophical doctrines of religion (1817) (Allen W. Wood -/- . (shrink)

Abnormalities in the ability of cells to properly degrade proteins have been identified in many neurodegenerative diseases. Recent work has implicated synaptojanin 1 (SynJ1) in Alzheimer's disease and Parkinson's disease, although the role of this polyphosphoinositide phosphatase in protein degradation has not been thoroughly described. Here, we dissected in vivo the role of SynJ1 in endolysosomal trafficking in zebrafish cone photoreceptors using a SynJ1‐deficient zebrafish mutant, nrca14. We found that loss of SynJ1 leads to specific accumulation of late endosomes and (...) autophagosomes early in photoreceptor development. An analysis of autophagic flux revealed that autophagosomes accumulate because of a defect in maturation. In addition we found an increase in vesicles that are highly enriched for PI(3)P, but negative for an early endosome marker in nrca14 cones. A mutational analysis of SynJ1 enzymatic domains found that activity of the 5'phosphatase, but not the Sac1 domain, is required to rescue both aberrant late endosomes and autophagosomes. Finally, modulating activity of the PI(4,5)P2 regulator, Arf6, rescued the disrupted trafficking pathways in nrca14 cones. Our study describes a specific role for SynJ1 in autophagosomal and endosomal trafficking and provides evidence that PI(4,5)P2 participates in autophagy in a neuronal cell type. -/- . (shrink)

Pierre Elliot Trudeau was a man of deep intellect, of strongly held philosophy, and of bold - if not occasionally audacious - personality. He was no high-minded, distant philosopher-ruler however. A consummate pragmatist, Trudeau sought to be a moral man of action. This important work looks his intellectual evolution as a young man, in the years before he entered politics.Beautifully written, this biography also paints a fascinating, colourful and multilayered portrait of Trudeau. Born into a wealthy family, Trudeau's years among (...) then-Jesuits at Brébeuf College in Montreal were formative, among other reasons for what would become his long-term interaction with Catholicism. Following law school at University of Montreal, Trudeau studied at Harvard in the US, at LSE in London, England, and at Sciences Po in Paris. Mills' considers the biggest influences on Trudeau, including Harold Laski, Jacques Maritain, and Emmanuel Mounier. Mills also recounts Trudeau's travels across the world throughout the 1950s, travelling in Europe, the Near and Far East, Egypt and Sudan, the USSR, Pakistan, India, Indonesia, Australia and New Zealand, regions in West Africa, Israel, Vietnam, Persia and Taiwan. A chapter considers Trudeau's evolving thought on Federalism and Nationalism, both internationally and in terms of Quebec and Canada. A chapter on Trudeau's moralism highlights his belief that politics requires individuals of conscience, who have the courage to speak frankly about their beliefs. Mills' biography shows us that understanding Trudeau the thinker is key to understanding Trudeau the politician, whose life was both a practical and a theoretical one. He was a cool political thinker who believed that clear analysis of political questions was essential to good governance. (shrink)

Weather experiences are currently surprisingly under-explored and under-theorised in sociology and sport sociology, despite the importance of weather in both routine, everyday life and in recreational sporting and physical–cultural contexts. To address this lacuna, we examine here the lived experience of weather, including ‘weather work’ and ‘weather learning’, in our specific physical–cultural worlds of distance-running, triathlon and jogging in the United Kingdom. Drawing on a theoretical framework of phenomenological sociology, and the findings from five separate auto/ethnographic projects, we explore the (...) ‘weather-worlds’ and weather work involved in our physical–cultural engagement. In so doing, we address ongoing sport sociological concerns about embodiment and somatic, sensory learning and ways of knowing. We highlight how weather work provides a key example of the phenomenological conceptualisation of the mind–body–world nexus in action, with key findings delineating weather learning across the meteorological seasons that contour our British weather-related training. (shrink)

Objective: Inhibitory control training has shown promise for improving health behaviours, however, less is known about its mediators of effectiveness. The current paper reports whether ICT reduces smoking-related outcomes such as craving and nicotine dependence, increases motivation to quit and whether reductions in smoking or craving are mediated by response inhibition or a devaluation of smoking stimuli.Method: Adult smokers were randomly allocated to receive 14 days of smoking-specific ICT or active control training. Participants were followed up to 3-months post-intervention. This (...) trial was preregistered.Results: There were no significant differences between ICT and active control training groups. Specifically, participants in both groups showed significant reductions in craving, nicotine dependence, motivation and a devaluation of smoking-stimuli up to 3-months follow-up compared to baseline. Inhibition and devaluation of smoking stimuli did not act as mediators. Devaluation of smoking stimuli was an independent predictor of smoking and craving at follow-up.Conclusion: Inhibitory control training was no more effective at reducing smoking-related outcomes compared to the active control group, however, significant improvements in craving, dependence indicators and evaluation of smoking stimuli were observed across both groups. A return to basic experimental research may be required to understand the most effective ICT approach to support smoking cessation. (shrink)

Work on farms and in restaurants is characterized by highly gendered and racialized divisions of labor, low wages, and persistent inequalities. Gender, race, and ethnicity often determine the spaces where people work in the food system. Although some research focuses on gendered divisions of labor in restaurants and on farms, few efforts look more broadly at intersectional inequalities in food work. Our study examines how inequality is perpetuated through restaurant and farm work in the United States and, specifically, how gender (...) and race/ethnicity influence where people work, their tasks and responsibilities, and their work experiences. In describing restaurant work, people in the restaurant industry typically refer to the front and back of the house to distinguish between different working spaces, jobs, and workers. We use this spatial metaphor of front and back of the house to analyze intersectional inequalities of food work in restaurants and on farms. The data derive from conversations with 63 restaurant and farm owners, managers, and workers in California and Pennsylvania. Our findings suggest that gendered and racialized bodies often define who works in the front and back of the “house,” and that owners and workers often naturalize gender and racial divisions of labor in food work. Despite these patterns, we found evidence of attempts to reduce these inequalities on farms and in restaurants. (shrink)

In this study, we present data on graduate students' actual experiences in dealing with impaired peers and faculty predictions of how students would deal with such situations. A total of 29 faculty and 73 graduate students responded to a survey of 40 randomly selected clinical psychology training programs. Student respondents were almost universally (95%) aware of peers whom they regarded as impaired in their professional functioning, and half (49%) the sample reported being aware of a peer's ethical impropriety. Faculty overestimated (...) the number of students who said they "did nothing" when confronted with the resulting ethical dilemma and underestimated the degree of conflict and turmoil (i.e., anger, frustration, dismay) that students reported experiencing. Faculty also estimated that students would be more concerned with peer loyalty issues, whereas students indicated that they were strongly motivated by ethical considerations. Ethics curricula ought more thoroughly to address affective concerns through experiential learning vehicles such as faculty modeling, simulation exercises, and small-group discussion. (shrink)

It is not uncommon to hear that poor school performance, welfare dependancy, youth unemployment, and criminal activity result more from shortcomings in the personal makeup of individuals than from societal forces beyond their control. Are American values declining as so many suggest? And are those values at the root of many social problems today?Shaped by experience and public policies, people's values and social norms do change. What role can or should a democratic government play in shaping values? And how do (...) these values conditon the efficacy of public policy?In this book, six distinguished social scientists identify trends in America's values and their consequences, and consider public policy tools with which some of those values might be changed.Daniel Yankelovich begins with a discussion of how American values have shifted in the last half-century, and argues that affluence is the driving force behind these changes in values. James Q. Wilson argues that destructive habits which can lead to social pathologies, like crime and drug use, are set early in life; he examines how public policy might intervene when children are young to promote better values. David Popenoe maintains that America has veered too far towards industrialist values, and explores the resulting decline of families and many attendant social ills. Nathan Glazer describes the history and present status of the dispute over multicultural education. Jane Mansbridge examines the process of building cooperation, consensus, and public spirit. And George Akerlof and Janet L. Yellen discuss the problem of gang criminality.Inthe past, social scientists have often sidestepped questions about values as undefinable, unquantifiable, and somehow unscientific. The essays in this volume address these questions at last.Henry J. Aaron, director of the Economic Studies program at Brookings, is the authorof numerous books, including most recently Serious and Unstable Condition: Financing America's Health Care (1991), and coeditor of Setting Domestic Priorities (1992). Thomas E. Mann is director of the Brookings Governmental Studies program, coeditor of Media Polls in American Politics (1992), and coauthor of the Renewing Congress series (1993). Timothy Taylor is managing editor of the Journal of Economic Perspectives at Stanford University. (shrink)

On 6 September 1836, George White wrote from Hatton Garden to T. B. Hall in Liverpool:I see by an advertisement that [there is] a proposition to form a Society to be called the Botanical Society of London—Its objects are the advancement of Botanical Science in general but more especially systematic and descriptive Botany—the formation of a Library, Museum & Herbarium—A meeting will be held at the Crown & Anchor, Strand, tomorrow evening & it is my intention to attend it—It (...) has been proposed thatLadiesshould be admitted!!!If the writer of those words lived up to his declared intention and did attend that or any other of the long string of inaugural meetings the Society held during the last quarter of that year, he would have been startled, perhaps even appalled to find how seriously that last-mentioned proposal had been taken. For on 3 November he would have found in the room at the Crown and Anchor Tavern (according to one report) ‘a crowded assembly of both ladies and gentlemen’. He would also have heard the founder of the Society, the nineteen-year-old Daniel Cooper, deliver a paper on the effects of light on plants, which (according to the same report) ‘excited great interest, more particularly with the ladies’. A fortnight later the meeting was again ‘numerously attended’ and again it attracted a number of the supposedly unlearned sex, some of whom by then were ‘members of the society’ unambiguously. (shrink)

Part I: The Life of Cognitive Science:. William Bechtel, Adele Abrahamsen, and George Graham. Part II: Areas of Study in Cognitive Science:. 1. Analogy: Dedre Gentner. 2. Animal Cognition: Herbert L. Roitblat. 3. Attention: A.H.C. Van Der Heijden. 4. Brain Mapping: Jennifer Mundale. 5. Cognitive Anthropology: Charles W. Nuckolls. 6. Cognitive and Linguistic Development: Adele Abrahamsen. 7. Conceptual Change: Nancy J. Nersessian. 8. Conceptual Organization: Douglas Medin and Sandra R. Waxman. 9. Consciousness: Owen Flanagan. 10. Decision Making: J. Frank (...) Yates and Paul A. Estin. 11. Emotions: Paul E. Griffiths. 12. Imagery and Spatial Representation: Rita E. Anderson. 13. Language Evolution and Neuromechanisms: Terrence W. Deacon. 14. Language Processing: Kathryn Bock and Susan M. Garnsey. 15. Linguistics Theory: D. Terence Langendoen. 16. Machine Learning: Paul Thagard. 17. Memory: Henry L. Roediger III and Lyn M. Goff. 18. Perception: Cees Van Leeuwen. 19. Perception: Color: Austen Clark. 20. Problem Solving: Kevin Dunbar. 21. Reasoning: Lance J. Rips. 22. Social Cognition: Alan J. Lambert and Alison L. Chasteen. 23. Unconscious Intelligence: Rhianon Allen and Arthur S. Reber. 24. Understanding Texts: Art Graesser and Pam Tipping. 25. Word Meaning: Barbara C. Malt. Part III: Methodologies of Cognitive Science:. 26. Artificial Intelligence: Ron Sun. 27. Behavioral Experimentation: Alexander Pollatsek and Keith Rayner. 28. Cognitive Ethology: Marc Bekoff. 29. Deficits and Pathologies: Christopher D. Frith. 30. Ethnomethodology: Barry Saferstein. 31. Functional Analysis: Brian Macwhinney. 32. Neuroimaging: Randy L. Buckner and Steven E. Petersen. 33. Protocal Analysis: K. Anders Ericsson. 34. Single Neuron Electrophysiology: B. E. Stein, M.T. Wallace, and T.R. Stanford. 35. Structural Analysis: Robert Frank. Part IV: Stances in Cognitive Science:. 36. Case-based Reasoning: David B. Leake. 37. Cognitive Linguistics: Michael Tomasello. 38. Connectionism, Artificial Life, and Dynamical Systems: Jeffrey L. Elman. 39. Embodied, Situated, and Distributed Cognition: Andy Clark. 40. Mediated Action: James V. Wertsch. 41. Neurobiological Modeling: P. Read Montague and Peter Dayan. 42. Production Systems: Christian D. Schunn and David Klahr. Part V: Controversies in Cognitive Science:. 43. The Binding Problem: Valerie Gray Hardcastle. 44. Heuristics and Satisficing: Robert C. Richardson. 45. Innate Knowledge: Barbara Landau. 46. Innateness and Emergentism: Elizabeth Bates, Jeffrey L. Elman, Mark H. Johnson, Annette Karmiloff-Smith, Domenico Parisi, and Kim Plunkett. 47. Intentionality: Gilbert Harman. 48. Levels of Explanation and Cognition Architectures: Robert N. McCauley. 49. Modularity: Irene Appelbaum. 50. Representation and Computation: Robert S. Stufflebeam. 51. Representations: Dorrit Billman. 52. Rules: Terence Horgan and John Tienson. 53. Stage Theories Refuted: Donald G. Mackay. Part VI: Cognitive Science in the Real World:. 54. Education: John T. Bruer. 55. Ethics: Mark L. Johnson. 56. Everyday Life Environments: Alex Kirlik. 57. Institutions and Economics: Douglass C. North. 58. Legal Reasoning: Edwina L. Rissland. 59. Mental Retardation: Norman W. Bray, Kevin D. Reilly, Lisa F. Huffman, Lisa A. Grupe, Mark F. Villa, Kathryn L. Fletcher, and Vivek Anumolu. 60. Science: William F. Brewer and Punyashloke Mishra. Selective Biographies of Major Contributors to Cognitive Science: William Bechtel and Tadeusz Zawidzki. (shrink)

It is a curious feature of Hegelian studies in English that its practitioners seem incapable of tackling their subject without first disclaiming any adherence to the more metaphysical side of Hegel's thought, be it called “speculative metaphysics,” “dialectical logic” or whatever. I say “curious” because I doubt that the same scholars would feel obliged to enter an equivalent disclaimer at the head of a study on, say, Aristotle, Descartes, Spinoza or even Newton—even though all of these classics have a metaphysical (...) side at least as abstruse as any of Hegel's worse romantic excesses. Hegel himself, if he could witness the practice, would be flattered by it. He would not see it as an indication that “the problems of [his] logic remain alien and artificial to us in ways that the problems of Cartesian and Kantian philosophy do not” but, on the contrary, as a hidden acknowledgement that, whether for good or bad, his philosophy is still alive, still so close to our culture that we instinctively feel the need of exorcizing it ritually, like a demon capable of frightening us. (shrink)

In recent years, philosophical developments of the notion of distributed and/or scaffolded cognition have given rise to the “extended mind” thesis. Against the popular belief that the mind resides solely in the brain, advocates of the extended mind thesis defend the claim that a significant portion of human cognition literally extends beyond the brain into the body and a heterogeneous array of physical props, tools, and cultural techniques that are reliably present in the environment in which people grow, think, and (...) act (Clark and Chalmers 1998; Clark 1997, 2003, 2008; Wilson 2004; Rowlands 1999, 2012; Menary 2007; Theiner 2011). However, as commentators who are friendly to the idea of distributed cognition have pointed out, the philosophical debate over extended cognition has predominantly focused on the impact of tools on our thinking while somewhat neglecting the distinctively social and cultural dimensions of cognitive scaffolding (Sterelny 2004, 2010; Caporael 1997a, 1997b; Smith and Semin 2004; Wilson 2005; Barnier et al. 2008; Sutton et al. 2010; Theiner, Allen, and Goldstone 2010). -/- To reorient the reigning paradigm, Hutchins (2010, 445) has recently proposed the “hypothesis of enculturated cognition” (HEnC) as an alternative to Clark’s (2003, 2008) largely individualistic vision of the extended mind. According to the HEnC, the “ecological assemblies of human cognition make pervasive use of cultural products” and are typically “assembled … in ongoing cultural practices” (ibid.). Cultural practices, for Hutchins, are essentially “the things people do in interaction with one another” (ibid., 440). My goal in this chapter is to follow up on Hutchins’s call to “spur the program forward” (ibid., 445), by generalizing Kirsh and Maglio’s (1994) distinction between pragmatic and epistemic actions from the level of individuals to the level of groups. The concept of a collective epistemic action refers to the ways in which groups of people actively change the structure of their social organization, with the epistemic goal of reshaping and augmenting their cognitive performance as integrated collectivities. By placing a renewed emphasis on the interactions between people, rather than between people and their tools, I hope to reconnect the cognitive-scientifically-driven “extended mind” thesis with complementary areas of social-scientific research in which groups are analyzed as the seats of action and cognition in their own right. In particular, the literature to which I aim to build a bridge in this paper is, on the one hand, certain segments of social and organizational psychology (Larson and Christensen 1993; Hinsz et al. 1997; Mohammed and Dumville 2001), and, on the other hand, theories of collective and institutional action (Ostrom 1990; List and Pettit 2011). (shrink)

_Nietzsche's New Seas_ makes available for the first time in English a representative sample of the best recent Nietzsche scholarship from Germany, France, and the United States. Michael Allen Gillespie and Tracy B. Strong have brought together scholars from a variety of disciplines—philosophy, history, literary criticism, and musicology—and from schools of thought that differ both methodologically and ideologically. The contributors—Karsten Harries, Robert Pippin, Eugen Fink, Hans-Georg Gadamer, Kurt Paul Janz, Sarah Kofman, Jean-Michel Rey, and the editors themselves—take a new (...) approach to Nietzsche, one that begins with the claim that his enigmatic utterances can best be understood by examining the style or structure of his thought. (shrink)

In der "Abhandlung über die Prinzipien der menschlichen Erkenntnis" entwickelt Berkeley die Lehre vom Immaterialismus. Die Wahrnehmung der Dinge mit den Sinnen ist für ihn die Basis allen Seins, den Geist versteht Berkeley als das aktive Prinzip.

This work brings together, for the first time in English translation, Hegel's journal publications from his years in Heidelberg, writings which have been previously either untranslated or only partially translated into English. The Heidelberg years marked Hegel's return to university teaching and represented an important transition in his life and thought. The translated texts include his important reassessment of the works of the philosopher F. H. Jacobi, whose engagement with Spinozism, especially, was of decisive significance for the philosophical development of (...) German Idealism. They also include his most influential writing about contemporary political events, his essay on the constitutional assembly in his native Württemberg, which was written against the background of the dramatic political and social changes occurring in post-Napoleonic Germany. The translators have provided an introduction and notes that offer a scholarly commentary on the philosophical and political background of Hegel's Heidelberg writings. (shrink)

In this wide-ranging and thoughtful study, Michael Allen Gillespie explores the philosophical foundation, or ground, of the concept of history. Analyzing the historical conflict between human nature and freedom, he centers his discussion on Hegel and Heidegger but also draws on the pertinent thought of other philosophers whose contributions to the debate is crucial—particularly Rousseau, Kant, and Nietzsche.

The elegy flared into existence, commanded the cultural stage for several decades, then went extinct. This book accounts for the swift rise and sudden decline of a genre whose life span was incredibly brief relative to its impact. Examining every major poet from Catullus to Ovid, Subjecting Verses presents the first comprehensive history of Latin erotic elegy since Georg Luck's. Paul Allen Miller harmoniously weds close readings of the poetry with insights from theoreticians as diverse as Jameson, Foucault, Lacan, (...) and Zizek. In welcome contrast to previous, thematic studies of elegy--efforts that have become bogged down in determining whether particular themes and poets were pro- or anti-Augustan--Miller offers a new, "symptomatic" history. He asks two obvious but rarely posed questions: what historical conditions were necessary to produce elegy, and what provoked its decline? Ultimately, he argues that elegiac poetry arose from a fundamental split in the nature of subjectivity that occurred in the late first century--a split symptomatic of the historical changes taking place at the time. Subjecting Verses is a major interpretive feat whose influence will reach across classics and literary studies. Linking the rise of elegy with changes in how Romans imagined themselves within a rapidly changing society, it offers a new model of literary theory that neither reduces the poems to a reflection of their context nor examines them in a vacuum. (shrink)

I reply to three criticisms of my "Propositional Relevance" offered by Derek Allen, First, Professor Allen points out an inconsistency between my theory of relevance and my reply to an objection, I admit the error but add that it is remediable. Second, he argues that my theory of relevance is counterintuitive. I argue that it is not. And finally, he says that where I use phrases like 'p makes q certain,' I should instead use phrases like 'p, if (...) true, makes q certain.' I argue against this. (shrink)

De Vries' mutation theory has not stood the test of time. The supposed mutations of Oenothera were in reality complex recombination phenomena, ultimately explicable in Mendelian terms, while instances of large-scale mutations were found wanting in other species. By 1915 the mutation theory had begun to lose its grip on the biological community; by de Vries' death in 1935 it was almost completely abandoned. Yet, as we have seen, during the first decade of the present century it achieved an enormous (...) popularity. As this paper has tried to suggest, one of the principal reasons for this was that de Vries' theory served as a banner around which a whole crowd of disaffected Darwinians or anti-Darwinians could rally. However, not all of those who favored de Vries did so for quite the same reasons. Underlying the multitude of views ran several common threads: a dissatisfaction with current Darwinian theory born out of misunderstanding natural selection, a general misunderstanding of the nature of species, and a prejudice against speculative, nontestable theories in biology.Supporters of de Vries were not the only opponents of Darwinism, nor was the mutation theory the only alternative to natural selection. In the early twentieth century a number of theories had been proposed to explain away the problems which Darwin had left unsolved. There was the idea of orthogenesis, championed by the American paleontologists Cope, Osborn and others; organic selection (or orthoplasy) was championed by M. M. Baldwin and C. Lloyd Morgan; there were the concepts of convergent evolution proposed by Hermann Friedmann, the theory of physiological selection by John George Romanes, and the concepts of reproductive divergence by H. M. Vernon. Virtually none of these men either accepted or were strong supporters of the de Vriesian theory, for each had his own particular ‘ism” to advocate as the major factor in evolution. The existence of a large number of such theories, each purporting to be the explanation, was characteristic of evolutionary theory at the turn of the century. It is to a large extent the emphasis on such fragmentary concepts that retarded development of the comprehensive theory of evolution which emerged in the 1920's and 1930's. For the historian, however, a study of these alternative theories is instructive in trying to understand the inherent difficulties which Dawwinian theory posed to biologists at the time. De Vries' mutation theory serves historically as a mirror to reflect the critical mood of a generation hostile to the theory of natural selection.It has often been claimed that it was impossible to understand the mechanism of natural selection until it could be placed in genetic and mathematical terms. It is certainly true that great strides have been made in population genetics and the treatment of evolutionary concepts with mathematical tools in the last forty years. But the very people who developed the genetical and mathematical approach to evolution were already convinced of the essential correctness of Darwinian theory before they started. Advances in an understanding of Mendelian heredity aided greatly in solving one important issue for evolutionists: the origin of variations. And the rigor with which selection acted could best be studied by observing changes in gene frequencies (calculated mathematically) over a number of generations. But as this paper has shown, two of the basic problems which biologists faced in evaluating Darwinian theory at the turn of the century-the nature of species, and the criteria of what constituted an acceptable explanation in biological science-could not be answered directly by mathematics. What mathematical and genetical theory did do was to help convince the skeptics of the validity of the Darwinian proposition.The change in explanatory criteria which many hailed as de Vries' most important contribution to evolutionary theory seems to have been part of a general emergence of twentieth-century biology from the domination of theorizers in the nineteenth. It also marked the emergence of America from the domination of biological, and particularly evolutionary, influence of Europeans. The change occurred in three areas: in the kinds of questions asked: testable versus non-testable; in the kind of data sought: quantitative versus qualitative; and in the kinds of theories proposed: analytical and reductive—the attempt to see complex processes in terms of simpler components-as opposed to synthetic and speculative. Although ultimately wrong in his idea, de Vries and his theories rode high on the wave of “experimentalism” which was the harbinger of a new era in evolutionary theory. (shrink)

Nietzsches Hermeneutik lässt die attische Tragödie zu einem kosmischen Geschehen werden dank der ontologischen Deutung, die sie ihr verleiht. Das tragische Schauspiel offenbart in seiner artistischen Symbolik den Grundcharakter der Welt und des Lebens, der von den ästhetischen Seinsmächten Dionysos und Apollo getragen wird, die, obgleich gegensätzlicher Natur, in ihrem Bestehen aufeinander angewiesen sind und sich gegenseitig steigern. Die durch die Schönheit trotz allen Leidens erzeugte Rechtfertigung menschlicher Existenz erreicht in der griechischen Tragödie somit ihren Höhepunkt. Sofern die Zuschauer (...) zum Miterleben stark genug sind, werden ihre Kräfte noch gemehrt. Aus alldem ergibt sich der Ausdruck einer lebensbejahenden Einstellung, die ganz das Gegenteil der Willensverneinung darstellt, zu der nach Schopenhauer die tragische Kunst überleiten soll. (shrink)