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Mind and Nature: Selected Writings on Philosophy, Mathematics, and Physics

by Hermann Weyl Peter Pesic

Hermann Weyl (1885-1955) was one of the twentieth century's most important mathematicians, as well as a seminal figure in the development of quantum physics and general relativity. He was also an eloquent writer with a lifelong interest in the philosophical implications of the startling new scientific developments with which he was so involved. Mind and Nature is a collection of Weyl's most important general writings on philosophy, mathematics, and physics, including pieces that have never before been published in any language or translated into English, or that have long been out of print. Complete with Peter Pesic's introduction, notes, and bibliography, these writings reveal an unjustly neglected dimension of a complex and fascinating thinker. In addition, the book includes more than twenty photographs of Weyl and his family and colleagues, many of which are previously unpublished. Included here are Weyl's exposition of his important synthesis of electromagnetism and gravitation, which Einstein at first hailed as "a first-class stroke of genius"; two little-known letters by Weyl and Einstein from 1922 that give their contrasting views on the philosophical implications of modern physics; and an essay on time that contains Weyl's argument that the past is never completed and the present is not a point. Also included are two book-length series of lectures, The Open World (1932) and Mind and Nature (1934), each a masterly exposition of Weyl's views on a range of topics from modern physics and mathematics. Finally, four retrospective essays from Weyl's last decade give his final thoughts on the interrelations among mathematics, philosophy, and physics, intertwined with reflections on the course of his rich life.

The Rights of Spring: A Memoir of Innocence Abroad

by David Kennedy

Ana reported being blindfolded, doused in cold water. She was tied to a metal frame; electrodes were fastened to her body. Someone cranked a hand-operated generator. One spring more than twenty years ago, David Kennedy visited Ana in an Uruguayan prison as part of the first wave of humanitarian activists to take the fight for human rights to the very sites where atrocities were committed. Kennedy was eager to learn what human rights workers could do, idealistic about changing the world and helping people like Ana. But he also had doubts. What could activists really change? Was there something unseemly about humanitarians from wealthy countries flitting into dictatorships, presenting themselves as white knights, and taking in the tourist sites before flying home? Kennedy wrote up a memoir of his hopes and doubts on that trip to Uruguay and combines it here with reflections on what has happened to the world of international humanitarianism since. Now bureaucratized, naming and shaming from a great height in big-city office towers, human rights workers have achieved positions of formidable power. They have done much good. But the moral ambiguity of their work and questions about whether they can sometimes cause real harm endure. Kennedy tackles those questions here with his trademark combination of narrative drive and unflinching honesty. This is a powerful and disturbing tale of the bright sides and the dark sides of the humanitarian world built by good intentions.

An Intellectual History of Cannibalism (PDF)

by Cătălin Avramescu Alistair Ian Blyth

The cannibal has played a surprisingly important role in the history of thought--perhaps the ultimate symbol of savagery and degradation-- haunting the Western imagination since before the Age of Discovery, when Europeans first encountered genuine cannibals and related horrible stories of shipwrecked travelers eating each other. An Intellectual History of Cannibalism is the first book to systematically examine the role of the cannibal in the arguments of philosophers, from the classical period to modern disputes about such wide-ranging issues as vegetarianism and the right to private property. Catalin Avramescu shows how the cannibal is, before anything else, a theoretical creature, one whose fate sheds light on the decline of theories of natural law, the emergence of modernity, and contemporary notions about good and evil. This provocative history of ideas traces the cannibal's appearance throughout Western thought, first as a creature springing from the menagerie of natural law, later as a diabolical retort to theological dogmas about the resurrection of the body, and finally to present-day social, ethical, and political debates in which the cannibal is viewed through the lens of anthropology or invoked in the service of moral relativism. Ultimately, An Intellectual History of Cannibalism is the story of the birth of modernity and of the philosophies of culture that arose in the wake of the Enlightenment. It is a book that lays bare the darker fears and impulses that course through the Western intellectual tradition.

An Intellectual History of Cannibalism

by Cătălin Avramescu Alistair Ian Blyth

The cannibal has played a surprisingly important role in the history of thought--perhaps the ultimate symbol of savagery and degradation-- haunting the Western imagination since before the Age of Discovery, when Europeans first encountered genuine cannibals and related horrible stories of shipwrecked travelers eating each other. An Intellectual History of Cannibalism is the first book to systematically examine the role of the cannibal in the arguments of philosophers, from the classical period to modern disputes about such wide-ranging issues as vegetarianism and the right to private property. Catalin Avramescu shows how the cannibal is, before anything else, a theoretical creature, one whose fate sheds light on the decline of theories of natural law, the emergence of modernity, and contemporary notions about good and evil. This provocative history of ideas traces the cannibal's appearance throughout Western thought, first as a creature springing from the menagerie of natural law, later as a diabolical retort to theological dogmas about the resurrection of the body, and finally to present-day social, ethical, and political debates in which the cannibal is viewed through the lens of anthropology or invoked in the service of moral relativism. Ultimately, An Intellectual History of Cannibalism is the story of the birth of modernity and of the philosophies of culture that arose in the wake of the Enlightenment. It is a book that lays bare the darker fears and impulses that course through the Western intellectual tradition.

Between Two Worlds: A Reading of Descartes's Meditations (PDF)

by John Carriero

Between Two Worlds is an authoritative commentary on--and powerful reinterpretation of--the founding work of modern philosophy, Descartes's Meditations. Philosophers have tended to read Descartes's seminal work in an occasional way, examining its treatment of individual topics while ignoring other parts of the text. In contrast, John Carriero provides a sustained, systematic reading of the whole text, giving a detailed account of the positions against which Descartes was reacting, and revealing anew the unity, meaning, and originality of the Meditations. Carriero finds in the Meditations a nearly continuous argument against Thomistic Aristotelian ways of thinking about cognition, and shows more clearly than ever before how Descartes bridged the old world of scholasticism and the new one of mechanistic naturalism. Rather than casting Descartes's project primarily in terms of skepticism, knowledge, and certainty, Carriero focuses on fundamental disagreements between Descartes and the scholastics over the nature of understanding, the relation between the senses and the intellect, the nature of the human being, and how and to what extent God is cognized by human beings. Against this background, Carriero shows, Descartes developed his own conceptions of mind, body, and the relation between them, creating a coherent, philosophically rich project in the Meditations and setting the agenda for a century of rationalist metaphysics.

Philosophical Essays, Volume 2: The Philosophical Significance of Language

by Scott Soames

The two volumes of Philosophical Essays bring together the most important essays written by one of the world's foremost philosophers of language. Scott Soames has selected thirty-one essays spanning nearly three decades of thinking about linguistic meaning and the philosophical significance of language. A judicious collection of old and new, these volumes include sixteen essays published in the 1980s and 1990s, nine published since 2000, and six new essays. The essays in Volume 1 investigate what linguistic meaning is; how the meaning of a sentence is related to the use we make of it; what we should expect from empirical theories of the meaning of the languages we speak; and how a sound theoretical grasp of the intricate relationship between meaning and use can improve the interpretation of legal texts. The essays in Volume 2 illustrate the significance of linguistic concerns for a broad range of philosophical topics--including the relationship between language and thought; the objects of belief, assertion, and other propositional attitudes; the distinction between metaphysical and epistemic possibility; the nature of necessity, actuality, and possible worlds; the necessary a posteriori and the contingent a priori; truth, vagueness, and partial definition; and skepticism about meaning and mind. The two volumes of Philosophical Essays are essential for anyone working on the philosophy of language.

Reason and Rationality

by Jon Elster Steven Rendall

One of the world's most important political philosophers, Jon Elster is a leading thinker on reason and rationality and their roles in politics and public life. In this short book, he crystallizes and advances his work, bridging the gap between philosophers who use the idea of reason to assess human behavior from a normative point of view and social scientists who use the idea of rationality to explain behavior. In place of these approaches, Elster proposes a unified conceptual framework for the study of behavior. Drawing on classical moralists as well as modern scholarship, and using a wealth of historical and contemporary illustrations, Reason and Rationality marks a new development in Elster's thinking while at the same time providing a brief, elegant, and accessible introduction to his work.

Gamma: Exploring Euler's Constant

by Julian Havil Freeman Dyson

Among the many constants that appear in mathematics, π, e, and i are the most familiar. Following closely behind is y, or gamma, a constant that arises in many mathematical areas yet maintains a profound sense of mystery. In a tantalizing blend of history and mathematics, Julian Havil takes the reader on a journey through logarithms and the harmonic series, the two defining elements of gamma, toward the first account of gamma's place in mathematics. Introduced by the Swiss mathematician Leonhard Euler (1707-1783), who figures prominently in this book, gamma is defined as the limit of the sum of 1 + 1/2 + 1/3 + . . . Up to 1/n, minus the natural logarithm of n--the numerical value being 0.5772156. . . . But unlike its more celebrated colleagues π and e, the exact nature of gamma remains a mystery--we don't even know if gamma can be expressed as a fraction. Among the numerous topics that arise during this historical odyssey into fundamental mathematical ideas are the Prime Number Theorem and the most important open problem in mathematics today--the Riemann Hypothesis (though no proof of either is offered!). Sure to be popular with not only students and instructors but all math aficionados, Gamma takes us through countries, centuries, lives, and works, unfolding along the way the stories of some remarkable mathematics from some remarkable mathematicians.

Gamma: Exploring Euler's Constant

by Julian Havil Freeman Dyson

Among the many constants that appear in mathematics, π, e, and i are the most familiar. Following closely behind is y, or gamma, a constant that arises in many mathematical areas yet maintains a profound sense of mystery. In a tantalizing blend of history and mathematics, Julian Havil takes the reader on a journey through logarithms and the harmonic series, the two defining elements of gamma, toward the first account of gamma's place in mathematics. Introduced by the Swiss mathematician Leonhard Euler (1707-1783), who figures prominently in this book, gamma is defined as the limit of the sum of 1 + 1/2 + 1/3 + . . . Up to 1/n, minus the natural logarithm of n--the numerical value being 0.5772156. . . . But unlike its more celebrated colleagues π and e, the exact nature of gamma remains a mystery--we don't even know if gamma can be expressed as a fraction. Among the numerous topics that arise during this historical odyssey into fundamental mathematical ideas are the Prime Number Theorem and the most important open problem in mathematics today--the Riemann Hypothesis (though no proof of either is offered!). Sure to be popular with not only students and instructors but all math aficionados, Gamma takes us through countries, centuries, lives, and works, unfolding along the way the stories of some remarkable mathematics from some remarkable mathematicians.

Kierkegaard's Writings, XXVI, Volume 26: Cumulative Index to "Kierkegaard`s Writings"

by Howard V. Hong Edna H. Hong Nathaniel J. Hong Kathryn Hong Regine Prenzel-Guthrie

The final volume of Princeton's Kierkegaard's Writings series, the Cumulative Index provides wide-ranging navigation to the preceding twenty-five volumes. Composed of over 90,000 entries, the Cumulative Index offers access to Kierkegaard's complex authorship and the extraordinary range of subjects he addressed in his writing. Covering the series' historical introductions, primary works, supplementary material (journal entries), and footnotes, the Cumulative Index provides a comprehensive entryway to more than 11,000 pages of text. Readers are able to survey via extended entries Kierkegaard's dual authorship, pseudonymous and signed; his numerous biblical allusions; his references to Christianity, God, and love; and his frequent use of analogies. A cumulative collation of the extensive supplementary material is also included, giving researchers and avid readers the opportunity to cross-reference Kierkegaard's Writings with his journals and papers published elsewhere in both English and Danish.

Kierkegaard's Writings, XXIII, Volume 23: "The Moment" and Late Writings

by Søren Kierkegaard Howard V. Hong Edna H. Hong

Kierkegaard, a poet of ideals and practitioner of the indirect method, also had a direct and polemical side. He revealed this in several writings throughout his career, culminating in The Moment, his attack against the established ecclesiastical order. Kierkegaard was moved to criticize the church by his differences with Bishop Mynster, Primate of the Church of Denmark. Although Mynster saw in Kierkegaard a complement to himself and his outlook, Kierkegaard challenged Mynster to acknowledge the emptying and estheticizing of Christianity that had occurred in modern Christendom. For three years Kierkegaard was silent, waiting. When Mynster died, he was memorialized as "an authentic truth-witness" in the "holy chain of truth-witnesses that stretches through the ages from the days of the apostles." This struck Kierkegaard as blasphemous and inspired him to write a series of articles in Fædrelandet, which he followed with ten numbers of the pamphlet The Moment. This volume includes the articles from Fædrelandet, all numbers of The Moment, and several other late pieces of Kierkegaard's writing.

Kierkegaard's Writings, XXIII, Volume 23: "The Moment" and Late Writings

by Søren Kierkegaard Howard V. Hong Edna H. Hong

Kierkegaard, a poet of ideals and practitioner of the indirect method, also had a direct and polemical side. He revealed this in several writings throughout his career, culminating in The Moment, his attack against the established ecclesiastical order. Kierkegaard was moved to criticize the church by his differences with Bishop Mynster, Primate of the Church of Denmark. Although Mynster saw in Kierkegaard a complement to himself and his outlook, Kierkegaard challenged Mynster to acknowledge the emptying and estheticizing of Christianity that had occurred in modern Christendom. For three years Kierkegaard was silent, waiting. When Mynster died, he was memorialized as "an authentic truth-witness" in the "holy chain of truth-witnesses that stretches through the ages from the days of the apostles." This struck Kierkegaard as blasphemous and inspired him to write a series of articles in Fædrelandet, which he followed with ten numbers of the pamphlet The Moment. This volume includes the articles from Fædrelandet, all numbers of The Moment, and several other late pieces of Kierkegaard's writing.

Kierkegaard's Writings, XXII, Volume 22: The Point of View

by Søren Kierkegaard Howard V. Hong Edna H. Hong

As a spiritual autobiography, Kierkegaard's The Point of View for My Work as an Author stands among such great works as Augustine's Confessions and Newman's Apologia pro Vita Sua. Yet Point of View is neither a confession nor a defense; it is an author's story of a lifetime of writing, his understanding of the maze of greatly varied works that make up his oeuvre. Upon the imminent publication of the second edition of Either/Or, Kierkegaard again intended to cease writing. Now was the time for a direct "report to history" on the authorship as a whole. In addition to Point of View, which was published posthumously, the present volume also contains On My Work as an Author, a contemporary substitute, and the companion piece Armed Neutrality.

Kierkegaard's Writings, XXII, Volume 22: The Point of View

by Søren Kierkegaard Howard V. Hong Edna H. Hong

As a spiritual autobiography, Kierkegaard's The Point of View for My Work as an Author stands among such great works as Augustine's Confessions and Newman's Apologia pro Vita Sua. Yet Point of View is neither a confession nor a defense; it is an author's story of a lifetime of writing, his understanding of the maze of greatly varied works that make up his oeuvre. Upon the imminent publication of the second edition of Either/Or, Kierkegaard again intended to cease writing. Now was the time for a direct "report to history" on the authorship as a whole. In addition to Point of View, which was published posthumously, the present volume also contains On My Work as an Author, a contemporary substitute, and the companion piece Armed Neutrality.

Kierkegaard's Writings, XXIV, Volume 24: The Book on Adler

by Søren Kierkegaard Howard V. Hong Edna H. Hong

Kierkegaard was driven to write The Book on Adler after news spread that a Danish pastor, Adolph P. Adler, claimed to have experienced a revelation in which Christ dictated a new doctrine. Like many others, Kierkegaard was intrigued by Adler--but for different reasons than most. Over the eight years during which Kierkegaard worked on the manuscript, the phenomenon of Adler became a concern secondary to the larger question of authority. Kierkegaard revised the manuscript many times, and published a segment of it as "The Difference between a Genius and an Apostle" in Two Ethical-Religious Essays, but did not publish the work as a whole before his death. The latest integral version of The Book on Adler is included here, along with excerpts from the earlier drafts and a sampling of writing by Adler himself.

Kierkegaard's Writings, XXIV, Volume 24: The Book on Adler

by Søren Kierkegaard Howard V. Hong Edna H. Hong

Kierkegaard was driven to write The Book on Adler after news spread that a Danish pastor, Adolph P. Adler, claimed to have experienced a revelation in which Christ dictated a new doctrine. Like many others, Kierkegaard was intrigued by Adler--but for different reasons than most. Over the eight years during which Kierkegaard worked on the manuscript, the phenomenon of Adler became a concern secondary to the larger question of authority. Kierkegaard revised the manuscript many times, and published a segment of it as "The Difference between a Genius and an Apostle" in Two Ethical-Religious Essays, but did not publish the work as a whole before his death. The latest integral version of The Book on Adler is included here, along with excerpts from the earlier drafts and a sampling of writing by Adler himself.

Kierkegaard's Writings, XVII, Volume 17: The Crisis and a Crisis in the Life of an Actress.

by Søren Kierkegaard Howard V. Hong Edna H. Hong

First published in 1848, Christian Discourses is a quartet of pieces written and arranged in contrasting styles. Parts One and Three, "The Cares of the Pagans" and "Thoughts That Wound from Behind--for Upbuilding," serve as a polemical overture to Kierkegaard's collision with the established order of Christendom. Yet Parts Two and Four, "Joyful Notes in the Strife of Suffering" and "Discourses at the Communion on Fridays," are reassuring affirmations of the joy and blessedness of Christian life in a world of adversity and suffering. Written in ordinary language, the work combines simplicity and inwardness with reflection and presents crucial Christian concepts and presuppositions with unusual clarity. Kierkegaard continued in the pattern that he began with his first pseudonymous esthetic work, Either/Or, by pairing Christian Discourses with The Crisis, an unsigned esthetic essay on contemporary Danish actress Joanne Luise Heiberg.

Kierkegaard's Writings, XVII, Volume 17: The Crisis and a Crisis in the Life of an Actress.

by Søren Kierkegaard Howard V. Hong Edna H. Hong

First published in 1848, Christian Discourses is a quartet of pieces written and arranged in contrasting styles. Parts One and Three, "The Cares of the Pagans" and "Thoughts That Wound from Behind--for Upbuilding," serve as a polemical overture to Kierkegaard's collision with the established order of Christendom. Yet Parts Two and Four, "Joyful Notes in the Strife of Suffering" and "Discourses at the Communion on Fridays," are reassuring affirmations of the joy and blessedness of Christian life in a world of adversity and suffering. Written in ordinary language, the work combines simplicity and inwardness with reflection and presents crucial Christian concepts and presuppositions with unusual clarity. Kierkegaard continued in the pattern that he began with his first pseudonymous esthetic work, Either/Or, by pairing Christian Discourses with The Crisis, an unsigned esthetic essay on contemporary Danish actress Joanne Luise Heiberg.

Kierkegaard's Writings, IX, Volume 9: Writing Sampler

by Søren Kierkegaard Todd W. Nichol

Prefaces was the last of four books by Søren Kierkegaard to appear within two weeks in June 1844. Three Upbuilding Discourses and Philosophical Fragments were published first, followed by The Concept of Anxiety and its companion--published on the same day--the comically ironic Prefaces. Presented as a set of prefaces without a book to follow, this work is a satire on literary life in nineteenth-century Copenhagen, a lampoon of Danish Hegelianism, and a prefiguring of Kierkegaard's final collision with Danish Christendom. Shortly after publishing Prefaces, Kierkegaard began to prepare Writing Sampler as a sequel. Writing Sampler considers the same themes taken up in Prefaces but in yet a more ironical and satirical vein. Although Writing Sampler remained unpublished during his lifetime, it is presented here as Kierkegaard originally envisioned it, in the company of Prefaces.

Kierkegaard's Writings, IX, Volume 9: Writing Sampler

by Søren Kierkegaard Todd W. Nichol

Prefaces was the last of four books by Søren Kierkegaard to appear within two weeks in June 1844. Three Upbuilding Discourses and Philosophical Fragments were published first, followed by The Concept of Anxiety and its companion--published on the same day--the comically ironic Prefaces. Presented as a set of prefaces without a book to follow, this work is a satire on literary life in nineteenth-century Copenhagen, a lampoon of Danish Hegelianism, and a prefiguring of Kierkegaard's final collision with Danish Christendom. Shortly after publishing Prefaces, Kierkegaard began to prepare Writing Sampler as a sequel. Writing Sampler considers the same themes taken up in Prefaces but in yet a more ironical and satirical vein. Although Writing Sampler remained unpublished during his lifetime, it is presented here as Kierkegaard originally envisioned it, in the company of Prefaces.

Kierkegaard's Writings, XVIII, Volume 18: Without Authority

by Søren Kierkegaard Howard V. Hong Edna H. Hong

"Without authority," a phrase Kierkegaard repeatedly applied to himself and his writings, is an appropriate title for this volume of five short works that in various ways deal with the concept and practice of authority. The Lily in the Field and the Bird of the Air contemplates the teaching authority of these creatures based on three different passages in the Gospels. The first of Two Ethical-Religious Essays mediates on the ethics of Jesus' martyrdom; the second contrasts the authority of the genius with that of the apostle. The remaining works--Three Discourses at the Communion on Fridays (1849), An Upbuilding Discourse (1850), and Two Discourses at the Communion on Fridays (1851)--are meditations on sin, forgiveness, and the power of love.

Kierkegaard's Writings, XVIII, Volume 18: Without Authority

by Søren Kierkegaard Howard V. Hong Edna H. Hong

"Without authority," a phrase Kierkegaard repeatedly applied to himself and his writings, is an appropriate title for this volume of five short works that in various ways deal with the concept and practice of authority. The Lily in the Field and the Bird of the Air contemplates the teaching authority of these creatures based on three different passages in the Gospels. The first of Two Ethical-Religious Essays mediates on the ethics of Jesus' martyrdom; the second contrasts the authority of the genius with that of the apostle. The remaining works--Three Discourses at the Communion on Fridays (1849), An Upbuilding Discourse (1850), and Two Discourses at the Communion on Fridays (1851)--are meditations on sin, forgiveness, and the power of love.

"e: The Story of a Number (PDF)

by Eli Maor

The interest earned on a bank account, the arrangement of seeds in a sunflower, and the shape of the Gateway Arch in St. Louis are all intimately connected with the mysterious number e. In this informal and engaging history, Eli Maor portrays the curious characters and the elegant mathematics that lie behind the number. Designed for a reader with only a modest mathematical background, this biography brings out the central importance of e to mathematics and illuminates a golden era in the age of science.

"e: The Story of a Number

by Eli Maor

The interest earned on a bank account, the arrangement of seeds in a sunflower, and the shape of the Gateway Arch in St. Louis are all intimately connected with the mysterious number e. In this informal and engaging history, Eli Maor portrays the curious characters and the elegant mathematics that lie behind the number. Designed for a reader with only a modest mathematical background, this biography brings out the central importance of e to mathematics and illuminates a golden era in the age of science.

Kierkegaard's Writings, XV, Volume 15: Upbuilding Discourses in Various Spirits

by Søren Kierkegaard Howard V. Hong Edna H. Hong

In his praise for Part I of Upbuilding Discourses in Various Spirits, the eminent Kierkegaard scholar Eduard Geismar said, "I am of the opinion that nothing of what he has written is to such a degree before the face of God. Anyone who really wants to understand Kierkegaard does well to begin with it." These discourses, composed after Kierkegaard had initially intended to end his public writing career, constitute the first work of his "second authorship." Characterized by Kierkegaard as ethical-ironic, Part One, "Purity of Heart Is to Will One Thing," offers a penetrating discussion of double-mindedness and ethical integrity. Part Two, "What We Learn from the Lilies in the Field and from the Birds of the Air," humorously exposes an inverted qualitative difference between the learner and the teacher. In Part Three, "The Gospel of Sufferings, Christian Discourses," the philosopher explores how joy can come out of suffering.

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