Erwin Schroedinger has been described as one of the greatest figures of theoretical physics, but there is another side to the man: not only did his work revolutionize physics, it also radically changed the foundations of our modern world-view, modern biology, philosophy of science, philosophy of the mind, and epistemology.

Manfred Eigen extended Erwin Schroedinger’s concept of “life is physics and chemistry” through the introduction of information theory and cybernetic systems theory into “life is physics and chemistry and information.” Based on this assumption, Eigen developed the concepts of quasispecies and hypercycles, which have been dominant in molecular biology and virology ever since. He insisted that the genetic code is not just used metaphorically: it represents a real natural language.However, the basics of scientific knowledge changed dramatically within the second (...) half of the 20th century.Unfortunately, Eigen ignored the results of the philosophy of science discourse on essential features of natural languages and codes: a natural language or code emerges from populations of living agents that communicate. This contribution will look at some of the highlights of this historical development and the results relevant for biological theories about life. (shrink)

Authored by an acclaimed teacher of quantum physics and philosophy, this textbook pays special attention to the aspects that many courses sweep under the carpet. Traditional courses in quantum mechanics teach students how to use the quantum formalism to make calculations. But even the best students - indeed, especially the best students - emerge rather confused about what, exactly, the theory says is going on, physically, in microscopic systems. This supplementary textbook is designed to help such students understand that they (...) are not alone in their confusions (luminaries such as Albert Einstein, Erwin Schroedinger, and John Stewart Bell having shared them), to sharpen their understanding of the most important difficulties associated with interpreting quantum theory in a realistic manner, and to introduce them to the most promising attempts to formulate the theory in a way that is physically clear and coherent. The text is accessible to students with at least one semester of prior exposure to quantum (or "modern") physics and includes over a hundred engaging end-of-chapter "Projects" that make the book suitable for either a traditional classroom or for self-study. (shrink)

What is quantum mechanics about? The most natural way to interpret quantum mechanics realistically as a theory about the world might seem to be what is called wave function ontology: the view according to which the wave function mathematically represents in a complete way fundamentally all there is in the world. Erwin Schroedinger was one of the first proponents of such a view, but he dismissed it after he realized it led to macroscopic superpositions (if the wave function evolves (...) in time according to the equations that has his name). The Many-Worlds interpretation1 accepts the existence of such macroscopic superpositions but takes it that they can never be observed. Superposed objects and superposed observers split together in different worlds of the type of the one we appear to live in. For these who, like Schroedinger, think that macroscopic superpositions are a problem, the common wisdom is that there are two alternative views: "Either the wave function, as given by the Schroedinger equation, is not everything, or is not right" [Bell 1987]. The deBroglie-Bohm theory, now commonly known as Bohmian Mechanics, takes the first option: the description provided by a Schroedinger-evolving wave function is supplemented by the information provided by the configuration of the particles. The second possibility consists in assuming that, while the wave function provides the complete description of the system, its temporal evolution is not given by the Schroedinger equation. Rather, the usual Schroedinger evolution is interrupted by random and sudden "collapses". The most promising theory of this kind is the GRW theory, named after the scientists that developed it: Gian Carlo Ghirardi, Alberto Rimini and Tullio Weber.. It seems tempting to think that in GRW we can take the wave function ontologically seriously and avoid the problem of macroscopic superpositions just allowing for quantum jumps. In this paper we will argue that such "bare" wave function ontology is not possible, neither for GRW nor for any other quantum theory: quantum mechanics cannot be about the wave function simpliciter. That is, we need more structure than the one provided by the wave function. As a response, quantum theories about the wave function can be supplemented with structure, without taking it as an additional ontology. We argue in reply that such "dressed-up" versions of wave function ontology are not sensible, since they compromise the acceptability of the theory as a satisfactory fundamental physical theory. Therefore we maintain that: 1- Strictly speaking, it is not possible to interpret quantum theories as theories about the wave function; 2- Even if the wave function is supplemented by additional non-ontological structures, there are reasons not to take the resulting theory seriously. Moreover, we will argue that any of the traditional responses to the measurement problem of quantum mechanics (Bohmian mechanics, GRW and Many-Worlds), contrarily to what commonly believed, share a common structure. That is, we maintain that: 3- All quantum theories should be regarded as theories in which physical objects are constituted by a primitive ontology. The primitive ontology is mathematically represented in the theory by a mathematical entity in three-dimensional space, or space-time. (shrink)

From the German physicist Erwin Schrödinger's text, What is life , the possible limits of conceptual division between physics and biology are analyzed. Is there a limit between physics and biology? Or can biology be reduced to physics? Different views will be analyzed among scientists and philosophers.A partir do texto do físico alemão E.Schroedinger, O que é vida? , analisam-se os possíveis limites de demarcação conceitual entre física e biologia. Há um limite possível entre física e biologia? Ou (...) a biologia pode ser reduzida à física? Avaliam-se diferentes pontos de vista entre cientistas e filósofos. (shrink)

Die 1990 gegründete Reihe, die auf eine Anregung von Mazzino Montinari zurückgeht, publiziert Quellenmaterialien zu Nietzsches Leben, seinem Umkreis und seiner Wirkung. Die Supplementa stellen somit eine Ergänzung zu den Kritischen Ausgaben von Nietzsches Werken (KGW) und Briefen (KGB) dar.

Objections arise to the concept of artistic intention based upon the psychology of a period. Here too we experience trends or volitions which can only be explained by precisely those artistic creations which in their own turn demand an explanation on the basis of these trends and volitions. Thus "Gothic" man or the "primitive" from whose alleged existence we wish to explain a particular artistic product is in truth the hypostatized impression which has been culled from the works of art (...) themselves. Or it is a question of intentions and evaluations which have become conscious as they find their formulation in the contemporary theory of art or in contemporary art criticism. Thus these formulations, just like the individual theoretical statements of the artists themselves, can once more only be phenomena parallel to the artistic products of the epoch; they cannot already contain their interpretation. Here again this parallel phenomenon would, in its entirety, represent an extraordinarily interesting object of humanistic investigation, but it would be incapable of defining in detail a methodologically comprehensible volition. So, too, the view of art which accompanies a period's artistic output can express the artistic volition of the period in itself but cannot put a name to it for us. This view can be of eminent significance when we are seeking a logical explanation for the perception of tendencies dominating at a given time and thus also for the judgment of artistic volition at that time, which must also be interpreted.Erwin Panofsky, the renowned art historian, was professor at the Institute for Advanced Study, Princeton University, until his death in 1968. Among his many books and articles are Meaning in the Visual Arts, Early Netherlandish Painting, and Renaissance and Renascenes in Western Art. Kenneth Northcott is professor of German and comparative literature at the University of Chicago and the translator of Arnold Hauser's Sociology of Art . Joel Snyder is chairman of the committee on general studies in the humanities at the University of Chicago. (shrink)

In this work, first published in two volumes in 1890 and 1894, Erwin Rohde, the German classical scholar and friend of Nietzsche, describes the ancient Greek cult of souls and establishes the sources of the belief in the immortality of the soul, exploring its relation to life both before and after death. This belief in the survival of the soul already existed in the earliest Greek writings, but when and from where did it originate? In Volume 1 Rohde examines (...) belief in the soul as it appears in Homeric poetry and within local cults, and finds that the idea of an afterlife is already represented in different forms in the works of Hesiod and Aeschylus. He also discusses burial rites and the Eleusinian Mysteries. Psyche, reissued here in the 1898 edition, remains a standard reference work on this topic. (shrink)

It is customary to draw a distinction between statements unconfirmable in practice and statements unconfirmable in principle. It may be impossible, for example, to confirm the statement “The star most distant from us in the universe has recently doubled in size,” but this impossibility is not of a logical kind. We could conceive of tests which would either confirm or disconfirm the statement, even if in fact we cannot carry them out. In contrast, the statement ‘Everything has recently doubled in (...) size’ cannot be confirmed for logical reasons, or so some philosophers have claimed. If everything were to double in size, including the very measuring rods used to detect expansions, it would be logically impossible, so the argument runs, to either confirm or disconfirm the above statement. (shrink)

Edward Erwin's clear analysis addresses some of the fundamental questions on behavior therapy that remained in 1978, when this book was first published.

Clinical ethics consultation service remains undeveloped in developing countries. It is recognised that its introduction poses challenges. Malaysia, a multicultural society with diverse religions, values and perceptions further complicate the introduction of formal clinical ethics consultation service. Clinicians attending a national congress workshop completed a Strengths–Weaknesses–Opportunities–Threats analysis. The aim was to gain insight into clinician’s expectations and promote initiatives leading to the introduction of clinical ethics consultation service. Clinicians agree that clinical ethics consultation service can improve quality of care, reduce (...) healthcare costs and advocate for patients and providers. The analysis highlighted constraints in sufficient critical mass of relevant expertise and restricted opportunities for training. The opportunities lie in education, curriculum development and availability of dedicated proponents. Cultural barriers, limited resources, lack of awareness, differenc... (shrink)

Nobel laureate Erwin Schrödinger was one of the most distinguished scientists of the twentieth century; his lectures on the history and philosophy of science are legendary. 'Nature and the Greeks' and 'Science and Humanism' makes available for the first time in many years the text of two of Schrödinger's most famous lecture series. 'Nature and the Greeks' offers a comprehensive historical account of the twentieth-century scientific world picture, tracing modern science back to the earliest stages of Western (...) philosophic thought. 'Science and Humanism' addresses some of the most fundamental questions of the century: what is the value of scientific research? and how do the achievements of modern science affect the relationship between material and spiritual matters? A foreword by Roger Penrose sets the lectures in a contemporary context, and affirms they are as relevant today as when they were first published. (shrink)

The three essays reprinted in this book were first published in 1963 as individual chapters of a psychiatric treatise entitled Psychiatrie der Gegen wart (Psychiatry of the Present Day). The editors, W. H. GRUHLE (Bonn), R. JUNG (Freiburg/Br. ), W. MAYER-GROSS (Birmingham, England), M. MUL LER (Bern, Switzerland), had not planned an encyclopedic presentation; they did not intend to present a "handbook" which would be as complete as possible in details and bibliographic reference. Their intention was to "raze the walls" (...) separating Continental and Anglo-Saxon psychiatries and to offer a synopsis of developments in psychiatry during the last decades on an international basis. The editors requested, therefore, cooperation of scholars from many foreign countries, large and small, on both sides of the Atlantic. A section entitled "Borderlands of Psychiatry", in which MARGARET MEAD (New York) discusses the relation of "Psychiatry and Ethnology", HANS HEIMAN (Bern), the relation of "Religion und Psychiatrie", and ROBERT VOLMER (Paris), "Art et Psychiatrie", is a good illustration of the trilingual character of the whole work. Two of the editors, GRUHLE and MAYER-GROSS, died before the publi cation had been completed. In a kind of posthumous eulogy, Professor JUNG and Professor MULLER praised the initiative and accomplishments of MAYER-GROSS, "who during the last five years of his life had given a great deal of his time to this work. He had set his mind on a synthesis of German and Anglo-Saxon psychiatry. (shrink)

Wissen wir, wer oder was unseren Lebensgang bestimmt? Wissen wir überhaupt, was in uns und ausserhalb von uns abläuft? Das einzig Gewisse ist unser Tod, doch was hilft die Gewissheit unseres Todes, wenn ungewiss bleibt, wann er kommt? Unsere Bedürfnisse kennen wir, aber wo sind die Grenzen der Befriedigung? Wenn unsicher geworden ist, wer oder was das bestimmt, was faktisch geschieht, wenn die Welt uns körperlich und seelisch bedrängt und die einzige Gewissheit in der Zukunft unser Tod ist, wenn uns (...) unsere Bedürfnisse und die Grenzen ihrer Befriedigung unklar geworden sind, dann hilft nichts mehr als das Nachdenken – das Nachdenken über unsere Natur und ihren Platz in der Welt, über die Hierarchie unserer Bedürfnisse, darüber, wie wir das Gelingen unseres Lebens mit Vernunft und Gerechtigkeit in Einklang bringen. Kurz, es hilft nichts als der Epikureismus. ********** Do we know who or what determines the course of our lives? Do we even know what is going on inside and outside of us? The only certain thing is our death, but what good is the certainty of our death if it remains uncertain when it will come? We know our needs, but where are the limits to their fulfilment? When it has become uncertain who or what determines what actually happens, when the world oppresses us physically and emotionally and the only certainty in the future is our death, when our needs and the limits of their fulfilment have become unclear to us, then nothing helps more than reflection - reflection on our nature and its place in the world, thinking about the hierarchy of our needs, about how we can harmonise the success of our lives with reason and justice. In short, nothing helps but Epicureanism. (shrink)

Wenn unsere faktische Erfahrung auf etwas beruhen muss, das nicht selbst wieder Erfahrung ist, drängt sich die Frage auf, wie die Vermittlung beider Bereiche zustandekomme. Sowohl Platon als auch Kant haben diese Vermittlung thematisiert, jener im Timaios, dieser im Opus postumum. Platons Dialog ist durch zwei Götteranrufungen in zwei Teile geteilt, denen nach Inhalt und Funktion zwei Werke Kants zugeordnet werden können. Dem ersten Teil, der die Welt unter rein noetischen Voraussetzungen zeigt, entspricht Kants Werk Metaphysische Anfangsgründe der Naturwissenschaft. In (...) der Einleitung zum zweiten Teil des Dialogs führt Platon die Chora und einen neuen Typ von Grund ein. Dem entspricht im Opus postumum die Einführung des Äthers, der es erlaubt, von der Metaphysik zur Physik überzugehen, wie es die Chora erlaubt, von der rein noetischen zum empirischen Welt überzugehen. ************ If our factual experience must be based on something that is not itself experience, the question arises as to how the mediation of both areas comes about. Both Plato and Kant addressed this mediation, the former in the Timaeus, the latter in the Opus postumum. Plato’s dialogue is divided into two parts by two invocations to the gods, to which two of Kant’s works can be assigned in terms of content and function. The first part, which shows the world un- der noetic conditions, corresponds to Kant’s work Metaphysische Anfangsgründe der Naturwis- senschaft (Metaphysical Foundations of Natural Science), and in the introduction to the second part of the dialog Plato introduces the chora and a new type of reason. In the Opus postumum, this corresponds to the introduction of the ether, which makes it possible to move from metaphysics to physics, just as the chora makes it possible to move from the purely noetic to the empirical world. (shrink)

First published in 2000. Routledge is an imprint of Taylor & Francis, an informa company.

Schrödinger discusses what an elementary particle is. This essay originally appeared in the journal Endeavour.

First published in 2000. Routledge is an imprint of Taylor & Francis, an informa company.