The quantum mechanical description of the evolution of an unstable system defined initially as a state in a Hilbert space at a given time does not provide a semigroup (exponential) decay, law. The Wigner–Weisskopf survival amplitude, describing reversible quantum transitions, may be dominated by exponential type decay in pole approximation at times not too short or too long, but, in the two channel case, for example, the pole residues are not orthogonal, and the evolution does riot correspond to a semigroup (...) (experiments on the decay of the neutral K-meson system strongly support the semigroup evolution postulated, by Lee, Oehme and Yang, and Yang and Wu). The scattering theory of Lax and Phillips, originally developed for classical wave equations, has been recently extended to the description of the evolution of resonant states in the framework of quantum theory. The resulting evolution law of the unstable system is that of a semigroup, and the resonant state is a well-defined function in the Lax–Phillips Hilbert space. In this paper we apply this theory to a relativistically covariant quantum field theoretical form of the (soluble) Lee model. We construct the translation representations with the help of the wave operators, and show that the resulting Lax–Phillips S-matrix is an inner function (the Lax–Phillips theory is essentially a theory of translation invariant subspaces). In the special case that the S-matrix is a rational inner function, we obtain the resonant state explicitly and analyze its particle (V, N, θ) content. If there is an exponential bound, the general case differs only by a so-called trivial inner factor, which does not change the complex spectrum, but may affect the wave function of the resonant state. (shrink)

We discuss some of the experimental motivation for the need for semigroup decay laws and the quantum Lax-Phillips theory of scattering and unstable systems. In this framework, the decay of an unstable system is described by a semigroup. The spectrum of the generator of the semigroup corresponds to the singularities of the Lax-Phillips S-matrix. In the case of discrete (complex) spectrum of the generator of the semigroup, associated with resonances, the decay law is exactly exponential. The states corresponding to these (...) resonances (eigenfunctions of the generator of the semigroup) lie in the Lax-Phillips Hilbert space, and, therefore, all physical properties of the resonant states can be computed. We show that the parametrized relativistic quantum theory is a natural setting for the realization of the Lax-Phillips theory. (shrink)

Le texte de Jules Vuillemin « De la connaissance sensible et de la parité qu’elle manifeste entre l’homme et l’animal » semble être un chapitre de livre abandonné. Vuillemin y décrit sous le nom de connaissance sensible l’ensemble des facultés, définies matériellement, que l’homme partage avec les animaux. Cette connaissance sensible conditionne jusqu’aux sciences naturelles et la philosophie. La spécificité humaine ne peut être définie matériellement : elle réside dans l’organisation formelle de l’expérience, source de laperfectibilité humaine.

Le texte de Jules Vuillemin « De la connaissance sensible et de la parité qu’elle manifeste entre l’homme et l’animal » semble être un chapitre de livre abandonné. Vuillemin y décrit sous le nom de connaissance sensible l’ensemble des facultés, définies matériellement, que l’homme partage avec les animaux. Cette connaissance sensible conditionne jusqu’aux sciences naturelles et la philosophie. La spécificité humaine ne peut être définie matériellement : elle réside dans l’organisation formelle de l’expérience, source de laperfectibilité humaine.

Political philosophy and natural science -- Political and psychological preconditions to recovering Socratic science -- The rediscovery of Socratic dialectic: Strauss on Schmitt's concept of the political 2. the fundamental political predicament: Strauss on Plato's laws, book III -- The origin and nature of philosophy -- The natural frame of reference and the possibility of a comprehensive science -- Natural right and history (ch. III) on the origin and nature of philosophy -- Divine revelation and the possibility of (...) science -- Strauss's introduction to Platonic studies in modern times -- Philosophy and revelation -- The foundations and directions of modern philosophy and science -- Science and politics in Strauss's natural right course -- An irony beyond Machiavelli's irony: a reading of the concluding six paragraphs of thoughts on Machiavelli. (shrink)

Leo Strauss famously asserted that the fundamental, defining debate within Western civilization is that between Jerusalem and Athens, piety and philosophy, the Bible and Plato. And yet, surprisingly, Strauss never published any of his thoughts on Plato’s dialogue on piety, the Euthyphro. This volume presents, for the first time, Strauss’s 1948 notebook on the dialogue, written in preparation for a class at the New School for Social Research. Featuring close analysis and line-by-line commentary, the notebook opens a (...) window onto a philosophic mind in action, as Strauss asks questions of the classic text, jots down observations and formulations, and analyzes very specific terms and arguments but also steps back, reviews the overall movement of the dialogue, and reconsiders previous conclusions. Beyond the notebook, the volume also brings together all the known materials that lay out Strauss’s thoughts on the Euthyphro. This includes newly transcribed and edited public lectures, illuminating appendixes, critical essays by volume editors Hannes Kerber and Svetozar Y. Minkov and scholar Wayne Ambler, an account of Strauss’s public lecture, and a new English translation of Plato’s Euthyphro by Seth Benardete, a classicist and one of Strauss’s students. Engaging and inspiring, Leo Strauss on Plato’s “Euthyphro” is a vital resource for scholars and students of political theory, readers interested in the intersection of philosophy and religion, and a must-have for anyone who studies Strauss. (shrink)

Reorienting the Political examines the reception of two controversial German philosophers, Carl Schmitt and Leo Strauss, in the Chinese-speaking world. This volume explores the powerful resonance of both thinkers in Chinese political thought from a cross-cultural and interdisciplinary perspective.

El propósito de la presente nota crítica consiste en examinar la concepción que Leo Strauss y José Ortega y Gasset elaboraron de la historia de la filosofía. Se trata, por tanto, de explorar la imagen que presentaron de dicha historia, una imagen de carácter general y que no repara en aspectos concretos. En la primera parte exponemos la concepción straussiana de la historia de la filosofía. En la segunda parte nos ocupamos de la concepción orteguiana de la historia de (...) la filosofía. Para concluir realizamos un análisis comparativo de una y otra concepción. (shrink)

ResumenLeo Strauss, en un ambiente filosófico adverso, tuvo la osadía de interrogarse acerca de la mejor forma de vida. Sin embargo, no parece haber alcanzado acabadamente su meta. El carácter zetético de su gnoseología, el abandono de conceptos metafísicos indispensables para alcanzar la unidad de ser, su énfasis en la «negatividad» del método socrático que limita la «positividad» propia de la mayéutica: el amor a la verdad, etc. le han conducido a la aporía consistente en la imposibilidad de alcanzar (...) una síntesis entre razón y revelación, consideradas como «totalidades» incompatibles entre sí. Por ello, no llega a dar respuesta a su interrogante más profundo.Palabras claveLeo Strauss, razón-revelación, escepticismo moderado, mayéutica.AbstractIn philosophical adverse times, Leo Strauss dared question about the best way of life. However, he does not seem to have achieved his objective completely. His zetetic epistemology; the abandonment of key metaphysical concepts necessary to comprehend the unity of being; his stress on the negativity stage of the Socratic method, limiting the conclusive positive stage of the maieutic (love of wisdom) have led him to an aporia. This is the impossibility of reaching a synthesis between reason and revelation, considered as «wholes» incompatible with each other. Hence he doesn’t find a convincing answer to his deepest inquiry about the best way of life.KeywordsLeo Strauss, reason-revelation, moderate scepticism, mai. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Leo Strauss on Plato's Euthyphro ed. Hannes Kerber, and Svetozar Y. MinkovColin David PearsKERBER, Hannes, and Svetozar Y. Minkov, editors. Leo Strauss on Plato's Euthyphro. University Park: Pennsylvania State University Press, 2023. vii + 231 pp. Cloth, $74.95; paper, $22.95Leo Strauss is an enigmatic figure in the landscape of political philosophy, deeply committed to the restoration of political philosophy as the premiere discipline in academia. (...) He spent his career working to reopen le querelle des anciens et des modernes and the theologico-political problem underlying those tensions. Though, as the editors of this volume point out, Strauss's motivations were not merely historiographic and the evolution of his thought was not without significant, if fruitful, setbacks.Strauss's early thought is defined by his engagement with Maimonides, and especially Philosophy and Law (1935). Without fully abandoning the [End Page 550] traditional interpretation of Maimonides as reconciling Jewish and Aristotelian philosophy, Strauss advances Maimonides as an esoteric thinker with a more complex and nuanced philosophic perspective. Strauss later turned to al-Farabi, who like Maimonides grapples with the complex interrelation of reason, revelation, and the role of philosophy. It was during this era that Strauss, having just fled Nazi Germany in 1938, confirmed his view of esoterism in philosophic writing and jettisoned limited traditional interpretations.However, these phases of Strauss's early development prove short-lived. In 1946, Strauss "suffers" his famous "shipwreck," a profound philosophic crisis, which compelled him "to begin again from the beginning" (Strauss to Löwith, 1946). Al-Farabi had led Strauss back into a study of Plato and to the crisis of reason laid out in Plato's dialogues, the crux of which is the possibility that there may exist permanent limits on what philosophy or science can know about the fundamental nature of things. The implications this has regarding the legitimacy of divine revelation led to the "second sailing" suggested in the Phaedo, and to Strauss's complete reevaluation of the theologico-political problem.The present volume provides a view of Strauss's evolving thought immediately following his "shipwreck" and as he begins to critically elaborate on his view of the relationship between philosophy and religion. Included are Strauss's notebook on Plato's Euthyphro and Crito (1948), a draft of his first lecture on the Euthyphro (1950), notes for his second lecture on the Euthyphro and the text of the lecture itself (1952), as well as marginalia and selections from his copy of Plato's dialogue. Together, these materials make up the several layers surrounding the heart of Strauss's thought on the problems of justice and piety, or "whether the right and necessity of philosophy are completely evident."Reading this volume is an exercise in flipping back and forth between one section and another to the point where one is tempted to break the spine, separate the sections, and lay them out side by side. Strauss's notebook provides his line-by-line interpretation of the Platonic dialogues and forms the basis for both the draft of his first lecture, his notes on the second, and his 1952 lecture itself. Astute readers may already notice in the notebook how Strauss subtly opens up his view of piety, for example by taking seriously Euthyphro's first but formally flawed definition of piety and gradually refusing to position Euthyphro as a fool. Strauss's draft of his first lecture picks up the notebook's themes but still presents a view of piety more in line with the pro-philosopher stance presented early in the notes. By contrast, the 1952 lecture presents a more elegant formulation of Strauss's position, both in words and actions. That is, not only does the second lecture closely follow the notebook's nuanced exegesis, but it is also designed to stimulate the reader's thinking on the problems of justice and piety, rather than resolve these didactically.Strauss appears to have abandoned the approach he took in the first lecture in favor of an approach that echoed Plato's own presentation in the Euthyphro. He closes the 1952 lecture with two especially salient [End Page 551] points. Returning to his early claim... (shrink)

Proponemos confrontar el pensamiento de Gilles Deleuze y Leo Strauss a partir de las disímiles interpretaciones que estos dos influyentes filósofos del siglo XX han hecho de la ontología política de Spinoza. Ambos comparten una problemática común: cómo se relacionan la sustancia y los modos existentes. Pero donde Strauss realiza un llamado a la Revelación y el mandato de amar al prójimo para colmar la brecha y evitar que la sabiduría sea sinónimo de indiferencia ante el sufrimiento de (...) la multitud, Deleuze recurre a una propuesta de lectura de la teoría del modo finito que permite distinguir el punto de vista de la Eternidad de aquel de la Duración, sin por eso dejar a los modos finitos librados al azar de los encuentros, es decir, permitiéndoles encontrar su conatus en la potencia divina. (shrink)

El artículo se refiere a la trayectoria de Richard Strauss, con especial mención de su obra operística sobre personajes mitológicos y míticos. Se destacan sus óperas Salomé y Electra como muestra de la innovación que introduce en el lenguaje musical, que preanuncia la revolución atonal experimentada en la música en los comienzos del s. XX. Se mencionan sus óperas de producción anterior, de corte wagneriano, y las posteriores, en un lenguaje novedoso, si bien más acorde con el sonido tonal (...) de la tradición austrogermana, y referidas a personajes de la Antigüedad y a la tradición oriental. This article deals with Richard Strauss's opera production based on mythological and mythical characters. Namely, we focus on the analysis of both of his well known operas, Salomé and Elektra, as innovative pieces of art which foreboded atonality, the greatest musical innovation of the XXth Century. We also review Strauss's former opera production, characterized by a Wagnerian influence, and his later works, more in the line of the tonal austrogermanic musical tradition, with characters of Greek mythology and of the oriental tradition. (shrink)

À travers une suite d’œuvres qui cherchaient toujours un autre but, Lévi-Strauss dessine tout de même les contours d’une éthique qui prend acte d’un certain nihilisme - la vie humaine n’a pas un sens qu’elle pourrait « découvrir » et elle ne saurait non plus donner son sens au monde -. Il détermine, en particulier, quelques caractéristiques d’une éthique qui veille à la protection de toutes les cultures et à la préservation de la terre qui abrite tous les vivants (...) et qui verra la fin de l’homme comme elle a connu la fin de tant d’espèces. Le lecteur de Lévi-Strauss s’étonne de constater que le structuralisme que l’auteur met en œuvre par méthode dans son travail anthropologique s’associe à un usage de fictions quand il s’agit de tracer une éthique. Notre enquête consiste à examiner cette association un peu étrange qui fait ressortir que, sans adhérer à l’utilitarisme, qui use d’une théorie des fictions, l’auteur se sert de cette dernière sur des points stratégiques pour éviter les dialectiques de style kantien et hégélien, c’est-à-dire pour que les oppositions se fassent contrepoids entre elles et pour que les contradictions puissent se résoudre en plis plutôt que se déchirer entre elles. (shrink)

El objeto de este artículo es mostrar las similitudes que existen entre el estructuralismo metateórico sneedeano y la que considero es la propuesta teórica más desarrollada del estructuralismo francés, la teoría antropológica de Claude Lévi-Strauss, en particular, su teoría de los sistemas elementales de parentesco. Aunque entre el estructuralismo francés de Lévi-Strauss y el estructuralismo metateórico sneedeano sólo existe, como diría Wittgenstein, un “aire de familia”, sin embargo, quiero mostrar que gracias al trabajo algebraico de André Weil y, (...) en particular, a su clarificación de la noción de estructura, existe un “puente” entre la propuesta teórica de Lévi-Strauss y la metateórica del estructuralismo inaugurada por J. D. Sneed en 1971 con la publicación de su libro The logical structure of mathematical physics. (shrink)

RESUMEN Los estudios actuales sobre la mentira priman su lado epistémico y desatienden los aspectos morales. Tal distinción es clara en los intentos de diferenciar la mentira de la intención de engañar, y tienen como contrapartida una concepción de la verdad realista. Por ello, las interpretaciones que cuestionan o minimizan la existencia de la Verdad tienden a ser rechazadas, y parece que tampoco podrían abordar satisfactoriamente la mentira. En este artículo cuestionaremos dicha asunción, mostrando cómo un autor del Renacimiento, Michel (...) de Montaigne, sostiene una perspectiva "negadora" de la verdad y critica la mentira, precisamente destacando su dimensión moral. ABSTRACT Current studies on lying emphasize its epistemic side and neglect the moral aspects. Such a distinction is clear in the attempts to distinguish lying from the intention to deceive and has as a counterpart a realistic conception of truth. Therefore, interpretations that question the existence of truth, or that minimize it, tend to be rejected, and it seems that they could not satisfactorily address the lie either. In this article we will question this assumption, showing how a Renaissance author, Michel de Montaigne, maintains a "denying" perspective of truth while criticizing the lie, precisely by highlighting its moral dimension. (shrink)

This essay examines the relationship between Eric Voegelin and Leo Strauss in order to show the central themes necessary to elucidate their philosophical positions. The essay reveals the centrality of the figure of Plato as a point of departure to understand the agreement and the disagreement concerning fundamental questions (such as the way of reading ancient texts, the importance of the historical perspective or the importance of the study of the past in order to orient the modern science) which (...) revolves around the issue of the relation between revelation and philosophy. The work concludes with an identification of the common core of both thinkers that allows us to understand their differences (homogeneity or heterogeneity of reality and the human) and, moreover, identifies both perspectives with a «foundational» (Voegelin) or «negative» (Strauss) interpretation of Plato’s thought. (shrink)

Resumen: El presente artículo busca presentar sumariamente las principales críticas elaboradas por Karl Löwith y Leo Strauss en su recepción del clásico trabajo de Carl Schmitt Der Begriff des Politischen [El concepto de lo político]. Se intentará explorar, en un primer apartado, la acusación löwithiana de “ocasionalismo ateológico”, formulada, aunque bajo pseudónimo, en un texto crítico de 1935 cuyo título original fue luego reemplazado por aquel con el que se lo conoce actualmente: Der okkasionelle Dezisionismus von Carl Schmitt [El (...) decisionismo ocasional de Carl Schmitt]. En la segunda sección, siguiendo principalmente la lectura propuesta de Heinrich Meier, se buscará dar cuenta de la interpretación que aparece en los Anmerkungen zu Carl Schmitt, Der Begriff des Politischen [Comentarios sobre El concepto de lo político de Carl Schmitt], las notas de Leo Strauss, publicadas en 1932, que sugieren entender la afirmación de lo político en la obra de Schmitt como constitutiva de la posterior crítica schmittiana de la filosofía política de Thomas Hobbes. Palabras clave: político, ocasionalismo, decisión, teología política, liberalismo. Abstract: This article seeks to briefly present the main criticisms elaborated by Karl Löwith and Leo Strauss in their reception of the classic work of Carl Schmitt Der Begriff des Politischen [The Concept of the Political]. It will be explored, in a f irst section, the Löwithian accusation of “atheological occasionalism”, offered, although under a pseudonym, in a text of 1935 whose original title was later replaced by that with which it is currently known: Der okkasionelle Dezisionismus von Carl Schmitt [The Occasional Decisionism of Carl Schmitt]. In the second section, following mainly the reading of Heinrich Meier, I will seek to give an account of the interpretation present in the Anmerkungen zu Carl Schmitt, Der Begriff des Politischen [Comments on Carl Schmitt’s Concept of the Political], the critical notes by Leo Strauss, published in 1932, which suggest understanding the assertion of politics in Schmitt’s work as constitutive for the later Schmittian critique of Thomas Hobbes’ political philosophy. Keywords: political, occasionalism, decision, politcal theoology, liberalism. (shrink)

En este artículo se examina la relación entre el pensamiento de Hegel y el de los clásicos griegos, especialmente Aristóteles, a la luz de los comentarios de Alexandre Kojève y Leo Strauss. Se advierten las dificultades de demostrar tanto la continuidad como la ruptura de Hegel con los clásicos, así como la necesidad de profundizar la investigación acerca de qué entendían estos por conceptos como el ser, lo divino, la eternidad, lo eterno y lo trascendente. Aunque entre Hegel y (...) los clásicos se pueden apreciar diferencias claras, si consideramos ciertos matices, resulta evidente que hay una fuerte conexión entre ellos, lo cual da argumentos a favor de la afirmación de que en Hegel culmina el pensamiento clásico. (shrink)

El presente artículo intenta explorar en dos tiempos de indagación del método estructural de Claude Lévi-Strauss. El primero de ellos se ubica en torno de los criterios epistemológicos y metodológicos que cifran el análisis del parentesco y del mito. El segundo tiempo pretende indagar en el alcance de estos criterios para definir la categoría de sujeto y de pensamiento al interior de la antropología estructural. Finalmente, una ilustración de estos problemas es elaborada mediante el tratamiento que el método estructural (...) asigna a la teoría psicoanalítica. (shrink)

RESUMENEste artículo busca abordar una cuestión que parece cobrar relevancia política en sociedades postmodernas y secularizadas: las implicaciones que para la ética política puede tener el considerar el mundo como un lugar vacío de sentido inherente o, por el contrario, como una realidad moral. Para ello se recupera la crítica que autores como Leo Strauss y Eric Voegelin, apoyados en una visión clásica de la política que reunía verdad y política, hicieron de Max Weber, cuya reflexión partía de la (...) imposibilidad de fundamentar objetivamente los valores y, por tanto, de conciliar verdad y política. La cuestión que se abre es si una perspectiva que, como la clásica, busca reunir verdad y política, no puede resultar paradójicamente menos consistente para dar cuenta de la especificidad de la ética política que otra que, como la weberiana, da por sentado la imposibilidad de tal reunión.PALABRAS CLAVEPOLÍTICA, VERDAD, ÉTICA, VALORES, VIOLENCIA, WEBER, STRAUSS, VOEGELINABSTRACTThis article deals with an issue that seems to become relevant in postmodern and secularized societies: the implications for political ethics of considering the world as a place without any essential and inherent meaning or, on the contrary, as a moral reality. In order to do this, we recover the criticism made by authors like Leo Strauss and Eric Voegelin –based on a classical concept of politics, joining truth and politics together–of Max Weber’s point of view, starting from the impossibility of objectively founding values and thus, of reconciling truth and politics. The question that arises is, if one perspective looks to join truth and politics together, as does the classical one, it cannot be paradoxically less able to portray the particularity of political ethics than another, like the Weberian one, which supposes the impossibility of the union of truth and politics.KEY WORDSPOLITICS, TRUTH, ETHICS, VALUES, VIOLENCE, WEBER, STRAUSS, VOEGELIN. (shrink)

En su Religionskritik Spinozas Leo Strauss sostiene que la crítica de la religión de Spinoza se expresa y fundamenta “en la alternativa cruda y desnuda entre la superstición, el prejuicio, la barbarie, la ignorancia, las tinieblas de un lado, y la razón, la libertad, la cultura, las luces, del otro”. La critica spinoziana de la religión aparece entonces, de acuerdo con Strauss, como “la critica…operada por el Iluminismo mas radical”. Un abismo se abre entre la vida del sabio (...) regida por la razón, y aquella de la multitud sujeta a las pasiones, estableciendo con ello una rígida jerarquía entre dos tipos de hombre nítidamente diferenciados. Nos propondremos en este trabajo examinar esta proposición centrándonos en la necesidad de repensar no sólo el rol de la razón y la imaginación en el discurso político spinoziano, sino fundamentalmente la relación entre una y otra; relación determinante en la constitución de la multitud, y por ello, de la forma política. Nuestro argumento será que en primer lugar esa afirmación no es coherente con la complejidad del texto spinoziano, y en segundo lugar, que la misma constituye el corazón de la interpretación straussiana de Spinoza. (shrink)

Toute situation de persécution a des effets sur les actions, les discours et les écrits de ceux qui en sont les victimes. Ce postulat conduit à une lecture critique de quelques - uns des traits saillants et des présupposés de « art d ' écrire entre les lignes », dont traite Leo Strauss dans son fameux essai Writing and Persecution. Le double constat de la pertinence de la méthode de lecture proposée et de son caractère problématique, inhérent à l (...) ' anthropologie élitiste qui sous - tend la démarche, conduit à revenir sur l ' histoire de la notion de persécution, pour en mettre en évidence la forte connotation religieuse, mais aussi l ' importance philosophique, à condition d ' assumer clairement le jugement éthique qui s ' y trouve engagé. Une étude de l ' écriture en régime de persécution devient alors possible, qui ne renie pas l ' inspiration straussienne, mais va plutôt chercher ses outils dans les sciences sociales contemporaines. Any persecution situation has effects on the actions, discourses and writings of its victims. Such a postulate leads to a critical reading of a few features and assumptions of an « art of writing in - between the Unes » Leo Strauss deals with in his famous essay Writing and Persecution. The twofold report of the relevant reading method and of its problematic character, inherent to the elitist anthropology underlying such an approach, leads to resume to the history of the concept of persecution such as to stress its strong religious connotation, but also its philosophical importance, provided one should fully acknowledge the ethical judgment thus implied. A study of writing in persecution regime thus becomes possible not denying the Straussian inspiration but rather trying to find new tools in contemporary social sciences. (shrink)

This article studies the relationship between philosophy and city in the works of Strauss and Machiavelli. It begins analyzing the Straussian interpretation of Machiavelli, without questioning its correctness. Two ways of understanding this relationship are compared: the Strauss’s way, according to which the Truth should be accessible only to few, and the republican way, for which the Truth should be accessible to all.