This book is available either individually, or as part of the specially-priced Arguments of the Philosphers Collection.

Many biologists appeal to the so-called Krogh principle when justifying their choice of experimental organisms. The principle states that “for a large number of problems there will be some animal of choice, or a few such animals, on which it can be most conveniently studied”. Despite its popularity, the principle is often critiqued for implying unwarranted generalizations from optimal models. We argue that the Krogh principle should be interpreted in relation to the historical and scientific contexts in which it has (...) been developed and used. We interpret the Krogh Principle as a heuristic, i.e., as a recommendation to approach biological problems through organisms where a specific trait or physiological mechanism is expected to be most distinctively displayed or most experimentally accessible. We designate these organisms “Krogh organisms.” We clarify the differences between uses of model organisms and non-standard Krogh organisms. Among these is the use of Krogh organisms as “negative models” in biomedical research, where organisms are chosen for their dissimilarity to human physiology. Importantly, the representational scope of Krogh organisms and the generalizability of their characteristics are not fixed or assumed but explored through experimental studies. Research on Krogh organisms is steeped in the comparative method characteristic of zoology and comparative physiology, in which studies of biological variation produce insights into general physiological constraints. Accordingly, we conclude that the Krogh principle exemplifies the advantages of studying biological variation as a strategy to produce generalizable insights. (shrink)

Vor allem die philosophische Religionskritik fokussiert sich zu oft auf die Kritik an der Annahme der Existenz Gottes. Dabei gerät aus dem Blick, dass Religionen nicht allein in Überzeugungen bestehen, sondern komplexe soziale Praktiken darstellen, die das Leben ihrer Gläubigen strukturieren, orientieren, stabilisieren und/oder irritieren. Die hier versammelten Beiträge thematisieren diesen Aspekt von Religion in Auseinandersetzung mit dem von Rahel Jaeggi konzipierten Modell einer "Kritik von Lebensformen". Dieser Band liefert damit einen Beitrag sowohl zur Religions-, als auch zur Sozialphilosophie."-- Back (...) cover. (shrink)

Book to honor the work of GianCarlo Ghirardi.

EDITOR'S INTRODUCTORY ESSAY1 A short biographical note Dietrich von Hildebrand was born in 1889 in Florence, as the sixth child and only son of the German ...

The naturalistic fallacy is mentioned frequently by evolutionary psychologists as an erroneous way of thinking about the ethical implications of evolved behaviors. However, evolutionary psychologists are themselves confused about the naturalistic fallacy and use it inappropriately to forestall legitimate ethical discussion. We briefly review what the naturalistic fallacy is and why it is misused by evolutionary psychologists. Then we attempt to show how the ethical implications of evolved behaviors can be discussed constructively without impeding evolutionary psychological research. A key is (...) to show how ethical behaviors, in addition to unethical behaviors, can evolve by natural selection. (shrink)

Petr Jakovlevič Čaadaev (1794–1856) gehört zu den herausragenden Gestalten der russi-schen Kultur- und Geistesgeschichte. Seit seiner Zeit an der Moskauer Universität (1808–1811) interessierte er sich für Philosophie und für die Vermittlung von Wissen-schaft (Philosophie), Geschichte und Religion. Čaadaev kämpfte als Offizier der Kaiserlichen Garde gegen Napoleon, verzichtete aber 1821 freiwillig auf eine Offizierskarriere. Eine private Europareise (1823–1826) prägte sein Weltbild. In den Jahren 1828–1830 verfasste Čaadaev acht 'Philosophische Briefe' in französischer Sprache, die den geschichts-philosophischen Diskurs in Russland mitbegründeten. Nach der (...) Veröffentlichung des ersten Briefes (1836) erklärte ihn Zar Nikolaus I. für geisteskrank und erteilte ihm Schreib- und Druckverbot. In der Auseinandersetzung Westler/Slawophile spielte Čaadaev in den 1830/40er Jahren die Rolle eines Außenseiters, der sich als religiöser Westler weder der einen noch der anderen Seite anschloss. (shrink)

How does a person become Hitler's enemy number one? Not through espionage or violence, it turns out, but by striking fearlessly at the intellectual and spiritual roots of National Socialism. Dietrich von Hildebrand was a German Catholic thinker and teacher who devoted the full force of his intellect to breaking the deadly spell of Nazism that ensnared so many of his beloved countrymen. His story might well have been lost to us were it not for this memoir he penned (...) in the last decades of his life at the request of his wife, Alice von Hildebrand. In My Battle Against Hitler, covering the years from 1921 to 1938, von Hildebrand tells of the scorn and ridicule he endured for sounding the alarm when many still viewed Hitler as a positive and inevitable force. He expresses the sorrow of having to leave behind his home, friends, and family in Germany to conduct his fight against the Nazis from Austria. He recounts how he defiantly challenged Nazism in the public square, prompting the German ambassador in Vienna to describe him to Hitler as 'the architect of the intellectual resistance in Austria.' And in the midst of all the danger he faced, he conveys his unwavering trust in God, even during his harrowing escape from Vienna and his desperate flight across Europe, with the Nazis always just one step behind. Dietrich von Hildebrand belongs to the very earliest anti-Nazi resistance. His public statements led the Nazis to blacklist him already in 1921, long before the horrors of the Third Reich and more than twenty-three years before the famous assassination attempt on Hitler in July 1944. His battle would culminate in the countless articles he published in Vienna, a selection of which are featured in this volume. 'It is an immense privilege,' writes editor John Henry Crosby, founder of the Hildebrand Project, 'to present to the world the shining witness of one man who risked everything to follow his conscience and stand in defiance of tyranny'. (shrink)

We show that given a simple Polygon P it is NP-hard to determine the smallest α ∈ [0, π] such that P can be illuminated by α-vertexlights, if we place exactly one α-vertexlight in each vertex of P.

Quantum philosophy, a peculiar twentieth-century malady, is responsible for most of the conceptual muddle plaguing the foundations of quantum physics. When this philosophy is eschewed, one naturally arrives at Bohmian mechanics, which is what emerges from Schrodinger's equation for a nonrelativistic system of particles when we merely insist that 'particles' means particles. While distinctly non-Newtonian, Bohmian mechanics is a fully deterministic theory of particles in motion, a motion choreographed by the wave function. The quantum formalism emerges when measurement situations are (...) analyzed according to this theory. When the quantum formalism is regarded as arising in this way, the paradoxes and perplexities so often associated with quantum theory simply evaporate.Bohr's ... approach to atomic problems ... is really remarkable. He is completely convinced that any understanding in the usual sense of the word is impossible. Therefore the conversation is almost immediately driven into philosophical questions, and soon you no longer know whether you really take the position he is attacking, or whether you really must attack the position he is defending. (shrink)

Das vorliegende Buch richtet sich an Studierende der Physik, für die nach der Quantenmechanik-Vorlesung die wesentliche Frage offen geblieben ist: „Was sagt denn nun der mathematische Formalismus, den ich jetzt ausgiebig und ach so mühsam studiert habe, über die Natur aus?“. Bei der Suche nach der Antwort besprechen die Autoren unter anderem die modernen Quantentheorien, die von John Stuart Bell „Theorien ohne Beobachter“ genannt wurden: die Bohmsche Mechanik, die Kollaps-Theorie und die Viele-Welten-Theorie. -/- Neben zielgerichteten mathematischen Aussagen, die in Kursvorlesungen (...) selten vorkommen, erklärt das Buch anhand der neuen Theorien die Rolle der Wellenfunktion und des Zufalls in der Quantenmechanik. Insbesondere beschäftigen sich die Autoren auch mit der Gedankenwelt des Physikers John Stuart Bell, der mit den berühmten, aber leider oft missverstandenen Bellschen Ungleichungen unser physikalisches Weltbild nachhaltig verändert hat. Das Buch eignet sich damit begleitend oder ergänzend zu einer Kursvorlesung über Quantenmechanik oder aber auch zum Selbststudium. (shrink)

Detlef Breitenband gibt in seinem Buch einen problemorientierten Überblick über die Rechtstheorien von Immanuel Kant und Jürgen Habermas. Im Zentrum steht die Frage nach der Leistungsfähigkeit beider Rechtstheorien, da diese den Konsens aller Rechtsadressaten zur Grundlage haben, aber nicht davon ausgegangen wird, dass jemals über eine Rechtsnorm ein faktischer Konsens erzeugt wird. Der Autor arbeitet die radikal-demokratischen Implikationen des Kantischen Republikanismus heraus und leistet einen wichtigen Beitrag zur Klärung des Begriffs der Legitimation von Rechtsnormen.

It is well known that density matrices can be used in quantum mechanics to represent the information available to an observer about either a system with a random wave function (“statistical mixture”) or a system that is entangled with another system (“reduced density matrix”). We point out another role, previously unnoticed in the literature, that a density matrix can play: it can be the “conditional density matrix,” conditional on the configuration of the environment. A precise definition can be given in (...) the context of Bohmian mechanics, whereas orthodox quantum mechanics is too vague to allow a sharp definition, except perhaps in special cases. In contrast to statistical and reduced density matrices, forming the conditional density matrix involves no averaging. In Bohmian mechanics with spin, the conditional density matrix replaces the notion of conditional wave function, as the object with the same dynamical significance as the wave function of a Bohmian system. (shrink)

Musica Poetica provides an unprecedented examination of the development of Baroque musical thought. The initial chapters, which serve as an introduction to the concept and teachings of musical-rhetorical figures, explore Martin Luther's theology of music, the development of the Baroque concept of musica poetica, the idea of the affections in German Baroque music, and that music's use of the principles and devices of rhetoric. Dietrich Bartel then turns to more detailed considerations of the musical-rhetorical figures that were developed in (...) Baroque treatises and publications. After brief biographical sketches of the major theorists, Bartel examines those theorists' interpretation and classification of the figures. The book concludes with a detailed presentation of the musical-rhetorical figures, in which each theorist's definitions are presented in the original language and in parallel English translations. Bartel's clear, detailed analysis of German Baroque musical-rhetorical figures, combined with his careful translations of interpretations of those figures from a wide range of sources, make this book an indispensable introduction and resource for all students of Baroque music. Dietrich Bartel is an associate professor in the Department of Music at Canadian Mennonite Bible College (affiliated with University of Manitoba). (shrink)

Dr. theol. Dr. phil. Detlef Schwartz, Jahrgang 1954, Pfarrer i. R. und langjähriger nebenamtlicher Universitätsdozent, mit Stationen in Deutschland und den USA sowie Lateinamerika, zieht eine vorläufige Bilanz seiner bisherigen Arbeit im Auslandsdienst der Evangelischen Kirche in Deutschland. Er ordnet diese ein in Erfahrungen in einem Pfarramt der United Church of Christ, USA, und seinen Beobachtungen in der Millionenmetropole Los Angeles. Die Konsequenz eines verstärkten Dialogs der Religionen, besonders mit dem Islam, koppelt er zurück an die Frage nach der (...) Notwendigkeit eines Paradigmenwechsels im Religionsunterricht hin zu einem den Dialog fördernden Kulturunterrichts."-- Back cover. (shrink)

The Christian does not live in a vacuum, says the author, but in a world of government, politics, labor, and marriage. Hence, Christian ethics cannot exist in a vacuum what the Christian needs, claims Dietrich Bonhoeffer, is concrete instruction in a concrete situation. Although the author died before completing his work, this book is recognized as a major contribution to Christian ethics. The root and ground of Christian ethics, the author says, is the reality of God as revealed in (...) Jesus Christ. This reality is not manifest in the Church as distinct from the secular world such a juxtaposition of two separate spheres, Bonhoeffer insists, is a denial of God's having reconciled the whole world to himself in Christ. On the contrary, God's commandment is to be found and known in the Church, the family, labor, and government. His commandment permits man to live as man before God, in a world God made, with responsibility for the institutions of that world. (shrink)

How can the propositional attitudes of several individuals be aggregated into overall collective propositional attitudes? Although there are large bodies of work on the aggregation of various special kinds of propositional attitudes, such as preferences, judgments, probabilities and utilities, the aggregation of propositional attitudes is seldom studied in full generality. In this paper, we seek to contribute to filling this gap in the literature. We sketch the ingredients of a general theory of propositional attitude aggregation and prove two new theorems. (...) Our first theorem simultaneously characterizes some prominent aggregation rules in the cases of probability, judgment and preference aggregation, including linear opinion pooling and Arrovian dictatorships. Our second theorem abstracts even further from the specific kinds of attitudes in question and describes the properties of a large class of aggregation rules applicable to a variety of belief-like attitudes. Our approach integrates some previously disconnected areas of investigation. (shrink)

Jeder von uns hatte das Gluck, unterrichtet zu werden. Vieles - oder zumindest manches - von dem, was erkennbar ist, wurde von uns auch erlernt. Durch Lehren und Lernen ist unsere Welt konstituiert, so wie sie ist, oder wie sie zumindest fur uns ist. Was aber ist das eigentlich: Lehren und Lernen? Konnen die vielen padagogischen Einsichten und das Verhaltnis von Lehrer zu Schuler, mit dem wir alle in unserem Leben zu tun hatten oder noch haben, auch philosophisch aufgearbeitet werden? (...) Thomas von Aquin (1225 - 1274) hat als einziger mittelalterlicher Autor eine 'Quaestio' uber den Lehrer geschrieben ('De magistro'). Darin und in weiteren Texten uber einen 'ordo addiscendi' - eine Ordnung des Lernens - expliziert er anhand philosophischer Mittel die Tatigkeiten des Lehrens und Lernens, auch auf dem Hintergrund der in seinem Jahrhundert entstehenden Universitaten. Die vorliegende Arbeit analysiert auf vier unterschiedlichen Ebenen - epistemisch, schopfungstheologisch, anthropologisch und sozial - das Verstandnis des Aquinaten hinsichtlich der Struktur und Genese des Lehrens und Lernens. Diese differenzierte Strukturierung eroffnet einen Einblick in die Wirkweise des menschlichen Geistes und exemplifiziert im Kern die wissenschaftstheoretische und anthropologische Konzeption des Aquinaten. Dabei wird der 'ordo addiscendi' in einer Eigenstandigkeit gegenuber der 'divisio philosophiae' als eine ausgezeichnete Weise menschlichen Tatigseins profiliert. (shrink)