Robert S. Cohen – författare

This special issue of Science and Context examines the entire area of scientific inquiry surrounding Einstein, presenting controversies and debates within their contexts.

The various efforts to develop a Marxist philosophy of science in the one­ time 'socialist' countries were casualties of the Cold War. Even those who were in no way Marxists, and those who were undogmatic in their Marxisms, now confront a new world. All the more harsh is it for those who worked within the framework imposed upon professional philosophy by the official ideology. Here in this book, we are concerned with some 31 colleagues from the late German Democratic Republic, representative in their scholarship of the achievements of a curiously creative while dismayingly repressive period. The literature published in the GDR was blossoming, certainly in the final decade, but it developed within a totalitarian regime where personal careers either advanced or faltered through the private protection or denunciation of mentors. We will never know how many good minds did not enter the field of philosophy in the first place due to their prudent judgments that there was a virtual requirement that the candidate join the Socialist Unity (i.e. Communist) Party. Among those who started careers and were sidetracked, the record is now beginning to be revealed; and for the rest, the price of 'doing philosophy' was mostly silence in the face of harassments the likes of which make academic politics in the West seem child's play.

Natural Sciences and the Social Sciences contains a series of explorations of the different ways in which the social sciences have interacted with the natural sciences. Usually, such interactions are considered to go only `one way': from the natural to the social sciences. But there are several important essays in this volume which show how developments in the social sciences have affected the natural sciences - even the `hard' science of physics. Other essays deal with various types of interaction since the Scientific Revolution. In his general introductory chapter, Cohen sets some general themes concerning analogies and homologies and the use of metaphors, drawing specific examples from the use of concepts of physics by marginalist economists and of developments in the life sciences by organismic sociologists. The remaining chapters, which explore the different ways in which the social sciences and the natural sciences have actually interacted, are written by leaders in the field of history of science, drawn from a wide range of countries and disciplines.The book will be of great interest to all historians of science, philosophers interested in questions of methodology, economists and sociologists, and all social scientists concerned with the history of their subject and its foundations.

A collection of essays by friends, students, and colleagues on Max Wartofsky's 65th birthday. Reflecting Wartofsky's own interests, topics discussed in this text range from the arts and sciences, to ethics and history, from the Enlightenment, through the 19th century to the present day.

Zygmunt Zawirski (1882-1948), an eminent and original Polish philosopher, belonged to the Lwow-Warsaw School (LWS) which left an indelible trace in logic, semiotics and philosophy of science. LWS was founded in 1895 by K. Twardowski, a disciple of Brentano, in the spirit of clarity, realism and analytic philosophy. LWS was more than 25 years older than the Vienna Circle (VC). This belies, inter alia, the not infrequently repeated statement that LWS was one of the many centres initiated by VC. The achievements of LWS in logic are well recognized, while those relating to philosophy of science are almost unknown. It is in order to fill this gap that some fragments of Zawirski's papers are presented, dealing mainly with causality, determinism, indeterminism and philosophical implications of relativity and quantum mechanics. His magnum opus "L'Evolution de la Notion du Temps" (Eugenio Rignano Prize, 1933) is devoted to time. Zawirski took into account all the issues which are at present widely discussed. The real value of these achievements can be understood better today than by his contemporaries.This text is suitable for all those interested in philosophy of science and philosophy, and history of ideas.

In these papers derived from an international conference held in 1992 in Beijing, Chinese and Western philosophers treat current as well as historically situated issues of realism and anti-realism in the understanding of scientific knowledge. There are four sections: (1) philosophical arguments proper (Hilpinen, Krejci, Musgrave, Niiniluoto, Qiu Renzong, Sfendoni-Mentzou, Bahm, Wallner and Peschl); (2) realism and general methodology (James Brown, Franklin, Gavroglu, Kaiser, Chin-Tai Kim, Wartofsky, Watkins, Wright, Wu Qiongbing, Yin Zhengkun); (3) physical sciences (Fan Dainian, Folse, He Zuoxiu, Hong Dingguo, Jin Wulun, Johansson, Li Li, Luo and Hu, Mao Shiying, Schagrin, Schlagel, Zhou Jihong); (4) social and biological sciences (Maki, Shanahan, Paul Tang and Ralph Brown III, Cohen). The conference was inspired by the late Professor Tscha Hung of Beijing, for many years Director of the Institute of Foreign Philosophy at Beijing University, and a distinguished PhD from the University of Vienna in 1934 under Moritz Schlick.

In relation to the problems faced today, in contemplation and in practical affairs, philosophers must confront the question 'What is knowledge?', and consider whether knowledge has lost its object. Such was the problem placed before the seminar convened by the Philosophical Society of Turkey at Ankara in 1989. The 17 papers derived from the lectures and discussions deal with problems of knowing and believing, of the kinds and criteria of knowledge, of truth and fallibility, and of the cultural as well as individual factors in cognition. The authors include Guido Kung, L. Jonathan Cohen, Ernest Sosa, Arda Denkel, Venant Cauchy, David Evans, Gurol Irzik, Ioanna Kucuradi, Evandro Agazzi, Richard T. DeGeorge, Kwasi Wiredu, Teo Grunberg, H. Odera Oruka, Jindrich Zeleny, V.A. Lektorsky, Anna-Teresa Tymieniecka, and Francisco Miro Quesada. There is a critical and analytical Prologue by the convener of the Seminar, Ioanna Kucuradi.

For a North American seeking to know the Mexican mind, and especially the sciences today and in their recent development, a great light of genius is to be found in Mexico City in the late 17th century. Tbe genius is that of one who surely may be counted as the first Mexican philosopher of nature, a nun of the Order of Saint Jerome: Sor Juana Ines de la Cruz. Sor Juana must speak for herself, from her penetrating exercise of an independent mind within a political and religious formation which denigrated women and circumscribed reason itself. To understand this world of ours, to join in an enlightenment which would be both natural and inspired, Sor Juana clearly understood the requirements of leaming, observing, logic and reasoning. In darkness foundering Words fail the troubled mind. For who, I ask, can light me When Reason is blind? Even now, after the great steps toward liberation of women, and the substantial scientific contributions toward sheer empirical awareness of both the multiple orders ofNature and the subtle aesthetics ofindividual art and social harmony, we too in the earthly world of the 20th century must affirm what she affirmed.

The articles in this collection were all selected from the first five volumes of the "Journal of Dialectics of Nature" published by the Chinese Academy of Sciences between 1979 and 1985. The journal was established in 1979 as a theoretical publication concerning the history, philosophy and sociology of the natural sciences. It began publication as a response to China's reform, particularly the policy of opening to the outside world. Chinese scholars began to undertake research in these fields. This collection provides a cross-section of their efforts during the initial phase. To enable Western scholars to understand the historical process of this change in Chinese academics, Yu Guangyuan's "On the Emancipation of the Mind" and Xu Liangying's "Essay on the Role of Science and Democracy in Society" have been included in this collection. Three of the papers included on the philosophy of science are discussions of philosophical issues in cosmology and biology by scientists themselves. The remaining four are written by philosophers of science and discuss information and cognition, homeostasis and Chinese traditional medicine, the I Ching (Yi Jing) and mathematics, for example.Papers have been selected on the history of both classical and modern science and technology, the most distinctive of which are macro-comparisons of the development of science in China and the West. Some papers discuss the issue of the demarcation of periods in the history of science, the history of ancient Chinese mathematics, astronomy, metallurgy, machinery, and medicine, for example. Others discuss the history of modern physics and biology, the history of historiography of science in China and the history of regional development of Chinese science and technology. Also included are biographies of three post-18th-century Chinese scholars, Li Shanlan (1811-1882), Hua Hengfang (1833-1902), and Cai Yuanpei (1868-1940), who contributed greatly to the introduction of Western science and scholarship to China. In addition, three short papers have been included introducing the interactions between Chinese scholars and three great western scientists, Niels Bohr, Norbert Wiener and Robert A. Millikan.

Azarya Polikarov was born in Sofia on October 9, 1921. Through the many stages of politics, economy, and culture in Bulgaria, he maintained his rational humanity and scientific curiosity. He has been a splendid teacher and an accomplished critical philosopher exploring the conceptual and historical vicis­ situdes of physics in modern times and also the science policies that favor or threaten human life in these decades. Equally and easily at home both within the Eastern and Central European countries and within the Western world. Polikarov is known as a collaborating genial colleague, a working scholar. not at all a visiting academic tourist. He understands the philosophy of science from within, in all its developments, from the classical beginnings through the great ages of Galilean, Newtonian. Maxwellian science. to the times of the stunning discoveries and imaginative theories of his beloved Einstein and Bohr of the twentieth century. Moreover, his understanding has come along with a deep knowledge of the scientific topics in themselves. Looking at our Appendix listing his principal publications, we see that Polikarov's public research career, after years of science teaching and popular science writing, began in the fifties in Bulgarian, Russian and German journals.

This volume, the first in a series, is intended for theoretical physicists and philosophers of science and is devoted to fundamental issues in the quantum domain. The book presents a number of discussions of experiments, theoretical puzzles and alternative interpretations, and philosophical treatments of the metaphysical foundations of science and the way in which these throw a scientific light on metaphysics. Hence the title, "Experimental Metaphysics", a term coined by Abner Shimony, to whom the book is dedicated. This collection of 16 scientific and philosophical essays by physicists, philosophers and historians of science deals with recent research and basic issues in quantum physics.

This is the second in a two-volume set, for theoretical physicists and philosophers of modern physics. It treats a puzzling and provocative aspect of recent quantum physics: the apparent interaction of certain physical events that cannot share any causal connection. These are said to be "entangled" in some way, but an explanation remains elusive. Abner Shimony, to whom the book is dedicated, and others, suggest the need to revive the category of what may be seen as a metaphysical potentiality. Abner has described these events without actions as "passion-at-a-distance": not active, but passive. The discussions gathered here are written by a team of scientists and philosophers seeking to shed new light on the most profound puzzles of our time.

Potentiality, Entanglement and Passion-at-a-Distance is a book for theoretical physicists and philosophers of modern physics. It treats a puzzling and provocative aspect of recent quantum physics: the apparent interaction of certain physical events that cannot share any causal connection. These are said to be `entangled' in some way, but an explanation remains elusive. Abner Shimony - to whom the book is dedicated - and others suggest the need to revive the category of what may be seen as a metaphysical potentiality. Abner has described these events without actions to link them as `passion at a distance': not active, but passive. The discussions gathered here are written by a truly remarkable cast of scientists and philosophers and shed new light on the most profound puzzles of our times.

This was a major work of the physicist turned philosopher, Philipp Frank. Already known for his papers on mathematical physics, and for his collaboration with the philosophers and scientists in the Vienna Circle, Frank developed his early essays of 1907-08 on causal law and human experience into this expository and critical treatise of 1931. How useful the logical empiricist requirement to formulate a "scientific philosophy" was, is demonstrated by Frank's clarifications of the strengths as well as limitations of the several concepts linked to causal explanation, and indeed by his analysis of misuse, what he called metaphysical, obscure misinterpretations. Among the historically significant topics in this classical treatise on science and its humanist import are Laplace's determinist hypothesis, loss of causal simplicity in field concept, causality and miracles, lawfulness in biology, cause and chance, conservation laws and causal laws, irreversibility of natural processes, and "true" world. The work is a classical treatise and should therefore be of interest to university collections in philosophy, physics and history of science.It should appeal to philosophers of science, modern empiricists, historians of science and those interested in the history of the Vienna Circle.

Philosophical understandings of Nature and Human Nature. Classical Greek and modern West, Christian, Buddhist, Taoist, by 14 authors, including Robert Neville, Stanley Rosen, David Eckel, Livia Kohn, Tienyu Cao, Abner Shimoney, Alfred Tauber, Krzysztof Michalski, Lawrence Cahoone, Stephen Scully, Alan Olson and Alfred Ferrarin. Dedicated to the phenomenological ecology of Erazim Kohak, with 10 of his essays and a full bibliography. Overall theme: on the question of the moral sense of nature.

In this volume, 11 leading scholars contribute to the understanding of the scientific and philosophical works of Moses Maimonides (1135-1204), the most luminous Jewish intellectual since Talmudic times. Deeply learned in mathematics, astronomy, astrology (which he strongly rejected), logic, philosophy, psychology, linguistics, and jurisprudence, and a practising physician, Maimonides flourished within the high Arabic culture of the 12th century, where he had momentous influence upon subsequent Jewish beliefs and behaviour, upon ethical demands, and upon ritual traditions. For him, mastery of the sciences was indispensable in the process of religious fulfilment.

This single volume contains all the important historical essays Edgar Zilsel (1891-1944) published during WWII on the emergence of modern science. This edition also contains one previously unpublished essay and an extended version of an essay published earlier. In these essays, Zilsel developed the now famous thesis, named after him, that science came into being when, in the late Middle Ages, the social barriers between the intellectuals and the artisans were eroded, due to the fact that the rapidly expanding commercial classes of that period had a keen interest in improvements in technology. This class was city-based and stimulated a social environment in which men of learning came to regard the craftsmen and technicians with a new respect, in which they no longer felt any contempt for manual work and in which theory and practice were eventually combined to produce modern science. This critical edition also carries a long introduction in which much new material about Zilsel's life and work is presented. It suggests that a radical new look at Zilsel's project needs to be taken.Zilsel's essays on the history of science look like a standard case study to substantiate a particular position on the origins of modern science, but they were also an attempt to show that lawlike explanation in history and social theory is possible. It is claimed that Zilsel's historical essays were a part of another project he was working on which focused on the idea that social phenomena were open to causal explanation as much as physical phenomena. Hence the volume also contains the essays Zilsel wrote in relation to this other project.

This book is for physicists, historians and philosophers of physics as well as students seeking an introduction to ongoing debates in relativistic and quantum physics. This title is unique in that: - it comprises contributions by leading physicists, philosophers and historians of science; - it covers the recent debates on the emergence of relativity and quantum theory; - it includes chapters with an introductory character, comprehensible to students and science teachers; - it can be used in graduate level courses in the history and philosophy of science; - it strengthens the bonds between the communities of scientists, historians, and philosophers.

This work makes available in a single volume all the important historical essays Edgar Zilsel (1891-1944) published during WWII on the emergence of modern science. This edition also contains one previously unpublished essay and an extended version of an essay published earlier. In these essays, Zilsel developed the now famous thesis, named after him, that science came into being when, in the late Middle Ages, the social barriers between the intellectuals and the artisans were eroded, due to the fact that the rapidly expanding commercial classes of that period had a keen interest in improvements in technology. This class was city-based and stimulated a social environment in which men of learning came to regard the craftsmen and technicians with a new respect, in which they no longer felt any contempt for manual work and in which theory and practice were eventually combined to produce modern science. This critical edition also carries a long introduction in which much new material about Zilsel's life and work is presented. It suggests that a radical new look at Zilsel's project needs to be taken.Zilsel's essays on the history of science look like a standard case study to substantiate a particular position on the origins of modern science, but they were also an attempt to show that lawlike explanation in history and social theory is possible. It is claimed that Zilsel's historical essays were a part of another project he was working on which focused on the idea that social phenomena were open to causal explanation as much as physical phenomena. Hence the volume also contains the essays Zilsel wrote in relation to this other project. Previously there have been published a German and an Italian edition of the Zilsel essays. This edition is the first in English; compared to the other two editions this one is the first that includes unpublished material and the first to undertake a serious effort to research Zilsel's life and work. What is special about this volume is the well-articulated social perspective it takes on the origins of modern science.

This book makes available for the first time in English a substantial part of Otto Neurath's economic writings. The essays and small monographs translated here extend from his student years to his last ever finished piece. They chart not only Neurath's varied interests in the economic history of antiquity, in war economics and schemes for the socialisation of peacetime economies, in the theory of welfare measures and social indicators and in issues of the theory of collective choice, but also show his philosophical interests emerging in his contributions to seminal debates of the German Social Policy Association. This volume shows that Neurath's important contributions to the socialist calculation debate are but one aspect of a many-sided and original oeuvre. The translations are preceded by an introductory essay by one of the editors which contextualises the selections by locating them in the various debates of the time that provided their original setting. This book is of interest to economists, philosophers of social science and of economics as well as to historians of philosophy of science and of analytic philosophy.

This volume owes its origin to the perception of a puzzling paradox. Hans Christian Ørsted, the great Danish scientist and philosopher, was one of the founders of modern physics through his experimental discovery in 1820 of the interaction of electricity and magnetism—a key step and model for the further unification of the forces of nature. Followers such as Maxwell and Einstein were, and today searchers worldwide are, enchanted by the hope for a completion of that grand program. In addition to Ørsted’s discovery of electromagnetism, his work in science included other fields, chiefly high-pressure physics and acoustics. Moreover, he belonged to that fascinating group of seekers who were deeply engaged in the Romantic tradition of the Nature Philosophers, influenced by Immanuel Kant and by religious, literary, and aesthetic currents. The scientific and philosophical speculations by Ørsted and his circle also quickly stimulated the imagination of other philosophers and scientists. Among the latter were prominently André-Marie Ampère and Michael Faraday, whose work launched the transformation of civilization often called the Second Ind- trial Revolution, based on the invention of motors, generators, and the pervasi- ness of electricity in modern life.

This book is unusual in many respects. It was written by a prolific author whose tragic untimely death did not allow to finish this and many other of his undertakings. It was assembled from numerous excerpts, notes, and fragments according to his initial plans. Zilberman’s legacy still awaits its true discovery and this book is a second installment to it after The Birth of Meaning in Hindu Thought (Kluwer, 1988). Zilberman’s treatment of analogy is unique in its approach, scope, and universality for Western philosophical thought. Constantly compared to eastern and especially classical Indian interpretations, analogy is presented by Zilberman as an important and in many ways primary method of philosophizing or philosophy-building. Due to its universality, this method can be also applied in linguistics, logic, social analysis, as well as historical and anthropological research. These applications are integral part of Zilberman’s book. A prophetic leap to largely uncharted territories,this book could be of considerable interest for experts and novices in the field of analogy alike.

In September 2007, more than 100 philosophers came to Prague with the determination to approach Karl Popper’s philosophy as a source of inspiration in many areas of our intellectual endeavor. This volume is a result of that effort. Topics cover Popper’s views on rationality, scientific methodology, the evolution of knowledge and democracy; and since Popper’s philosophy has always had a strong interdisciplinary influence, part of the volume discusses the impact of his ideas in such areas as education, economics, psychology, biology, or ethics. The concept of falsification, the problem of demarcation, the ban on induction, or the role of the empirical basis, along with the provocative parallels between historicism, holism and totalitarianism, have always caused controversies. The aim of this volume is not to smooth them but show them as a challenge. In this time when the traditional role of reason in the Western thought is being undermined, Popper’s non-foundationist model ofreason brings the Enlightenment message into a new perspective. Popper believed that the open society was vulnerable, due precisely to its tolerance of otherness. This is a matter of great urgency in the modern world, as cultures based on different values gain prominence.  The processes related to the extending of the EU, or the increasing economic globalization also raise questions about openness and democracy. The volume’s aim is to show the vitality of critical rationalism in addressing and responding to the problems of this time and this world.

This volume contains the English translation of Felix Kaufmann's (1895-1945) main work Methodenlehre der Sozialwissenschaften (1936). In this book, Kaufmann develops a general theory of knowledge of the social sciences in his role as a cross-border commuter between Husserl's phenomenology, Kelsen's pure theory of law and the logical positivism of the Vienna Circle. This multilayered inquiry connects the value-oriented reflections of a general philosophy of science with the specificity of the methods and theories of the social sciences, as opposed to abstract natural science and psychology. The core focus of the study is the attempt to elucidate how and under what conditions scientific knowledge about social facts, empirically justified and theoretically embedded, can be obtained. The empirical basis of knowledge within the social sciences forms a phenomenological concept of experience. According to Kaufmann, this concept of experience exhibits a complex structure. Within the meaning-interpretation of human action as the core of knowledge in the social sciences, this structure reaches out across the isolated act of verification toward the synthesis of external and internal experiences. The book opens with a detailed and useful introduction by Ingeborg K. Helling, which introduces the historical and theoretical background of Kaufmann's study and specifically illuminates his relation to Alfred Schütz and John Dewey. Finally, it contains interviews with and letters to members of his family, colleagues and students.

This volume contains the English translation of Felix Kaufmann's (1895-1945) main work Methodenlehre der Sozialwissenschaften (1936). In this book, Kaufmann develops a general theory of knowledge of the social sciences in his role as a cross-border commuter between Husserl's phenomenology, Kelsen's pure theory of law and the logical positivism of the Vienna Circle. This multilayered inquiry connects the value-oriented reflections of a general philosophy of science with the specificity of the methods and theories of the social sciences, as opposed to abstract natural science and psychology. The core focus of the study is the attempt to elucidate how and under what conditions scientific knowledge about social facts, empirically justified and theoretically embedded, can be obtained. The empirical basis of knowledge within the social sciences forms a phenomenological concept of experience. According to Kaufmann, this concept of experience exhibits a complex structure. Within the meaning-interpretation of human action as the core of knowledge in the social sciences, this structure reaches out across the isolated act of verification toward the synthesis of external and internal experiences. The book opens with a detailed and useful introduction by Ingeborg K. Helling, which introduces the historical and theoretical background of Kaufmann's study and specifically illuminates his relation to Alfred Schütz and John Dewey. Finally, it contains interviews with and letters to members of his family, colleagues and students.

This third volume of Boston Studies in the Philosophy of Science contains papers which are based upon Colloquia from 1964 to 1966. In most cases, they have been substantially modified subsequent to presentation and discussion. Once again we publish work which goes beyond technical analysis of scientific theories and explanations in order to include philo­ sophical reflections upon the history of science and also upon the still problematic interactions between metaphysics and science. The philo­ sophical history of scientific ideas has increasingly been recognized as part of the philosophy of science, and likewise the cultural context of the genesis of such ideas. There is no school or attitude to be taken as de­ fining the scope or criteria of our Colloquium, and so we seek to under­ stand both analytic and historical aspects of science. This volume, as the previous two, constitutes a substantial part of our final report to the U. S. National Science Foundation, which has continued its support of the Boston Colloquium for the Philosophy of Science by a grant to Boston University. That report will be concluded by a subse­ quent volume of these Studies. It is a pleasure to record our thanks to the Foundation for its confidence and funds. We dedicate this book to the memory of Norwood Russell Hanson. During this academic year of 1966-67, this beloved and distinguished American philosopher participated in our Colloquium, and he did so before.

The fourth volume of Boston Studies in the Philosophy of Science consists mainly of papers which were contributed to our Colloquium during the past few years. The volume represents a wide range of interests in contem­ porary philosophy of science: issues in the philosophy of mind and of language, the neurophysiology of perceptual and linguistic behavior, philosophy of history and of the social sciences, and studies in the fun­ damental categories and methods of philosophy and the inter-relation­ ships of the sciences with ethics and metaphysics. Papers on the logic and methods of the natural sciences, including biological, physical and mathematical topics appear in the fifth volume of our series. We have included in the present volume the first English translation of the classic and fundamental work on aphasia by Carl Wernicke, together with a lucid and appreciative guide to his work by Dr. Norman Geschwind. The papers were not written to form a coherent volume, nor have they been edited with such a purpose. They represent current work-in­ progress, both in the United States and in Europe. Although most of the authors are philosophers, it is worth noting that we have essays of philosophical significance here written by a sociologist, an anthropologist, a political scientist, and by three neurophysiologists. We hope that collaboration among working scientists and working philosophers may develop further.

At the annual meeting of the American Association for the Advancement of Science in Washington, D.C., 27 December 1966, a symposium was held to commemorate the 50th anniversary of the death of Ernst Mach, the physicist who was vitally concerned about philosophical foundations. It was arranged by Section B on Physics, and co-sponsored by Section L on the History and Philosophy of Science, as well as by the History of Science Society. Dr. Allen W. Astin, Vice-President of the Association and Director of the National Bureau of Standards, presided. Representing the Austrian ambassador, Dr. Ernst Lemberger, a few opening remarks on his behalf were made by Dr. Walter Hietsch. Also present was Dr. Ernest A. Lederer, a grandson of Ernst Mach. The contributors, to the symposium, mostly physicists, represented different backgrounds and differing points of view; they presented their review of Mach's work primarily in the light of subsequent developments. They all, however, share a common interest in the life and works of Ernst Mach. Two of them, Otto BlUh and Peter G. Bergmann, received their doctoral degrees in theoretical physics from the University of Prague. Karl Menger received his doctoral degree in mathematics from the University of Vienna (he is responsible for the latest edition [1960] of Mach's celebrated The Science of Mechanics: A Critical and Historical Account of its Development, for which he prepared a new Introduction).

On the last day of his life, Otto Neurath had given help to a Chinese philosopher who was writing about Schlick. Only an hour before his death he said to me: "Nobody will do such a thing for me." My answer then was: "Never mind, you have Bilston, isn't that better?" There were con­ sultations in new housing schemes, an exhibition, and hopes for a fruitful relationship of longer duration. I did not dream at that time that I would one day work on a book like this. The idea came from Horace M. Kallen, of the New School for Social Research, New York, years later; to encourage me he sent me his selection from William James' writings. Later I met Robert S. Cohen. Carnap had sent him to me with the message: "If you want to find out what my political views were in the twenties and thirties, read Otto Neurath's books and articles of that time; his views were also mine." In this way Robert Cohen became ac­ quainted with Otto Neurath. Even more: he became interested; and when I asked him, would he help me as an editor of an Otto N eurath volume, he agreed at once. In previous years I had already asked a number of Otto Neurath's friends to write down for me what they especially remembered about him.