Available for the first time in 20 years, here are two important works from the 1920s by the best-known representative of the Vienna Circle.

Introductory Abstract Philosophers of science, in the course of making a sharp distinction between the tasks of the philosopher and those of the scientist, have pointed to the possibility of an empirical science of induction. A comparative psychology of knowledge processes is offered as one aspect of this potential enterprise. From fragments of such a psychology, methodological suggestions are drawn relevant to several chronic problems in the social sciences, including the publication of negative results from novel explorations, the operational diagnosis (...) of dispositions, the status of aggregates of persons as social entities, and the validation of psychological tests. (shrink)

Central to Paul K. Feyerabend's philosophy of science are two theses: (1) there is no standard observation language available to science; instead, observability is to be viewed as a pragmatic matter; and (2) when considering questions of empirical significance and experimental test, the methodological unit of science is a set of inconsistent theories. I argue that the pragmatic theory of observation by itself decides neither for nor against any particular specification of meaning for an observation language; and that Feyerabend's position (...) provides no decision procedure when two contending theories share no terms having the same meaning, and thus cannot be said to be logically incompatible. Also, Feyerabend's insistence upon falsification will force him to admit that there are relatively permanent facts available to all theories, or to abandon the idea of test as falsification and to conclude that scientific theories can only be accepted or rejected on the basis of non-evidential considerations. (shrink)

CHAPTER I INTRODUCTION (A) Historical Problem Suggested by the Nature of Modern Thought How curious, after all, is the way in which we moderns think about ...

F. P. Ramsey pointed out in Theories that the observational content of a theory expressed partly in non-observational terms is retained in the sentence resulting from existentially generalizing the conjunction of all sentences of the theory with respect to all nonobservational terms. Such terms are thus avoidable in principle, but only at the cost of forming a single "monolithic" sentence. This paper suggests that communication may be thought of as occurring not only by sentence but by clause, a sentential formula (...) closed except for a special kind of variable. Understanding such clauses requires incorporating them within the scope of one's own Ramsey sentence. Many concepts of deductive and inductive logic carry over without great change. But the concepts of truth and designation are extendible to clauses only in the sense that assertions involving them must, to be understood, in turn be construed as clauses and incorporated into the Ramsey sentence. The behavior of these extended concepts of truth and designation suggests an explication of coherence truth within a correspondence-truth framework. (shrink)

In this systematic study, Professor Achinstein analyzes such concepts as definitions, theories, and models, and contrasts his view with currently held positions that he finds inadequate.

"The Analysis of Matter" is one of the earliest and best philosophical studies of the new physics of relativity and quantum mechanics.

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

How do we know what we "know"? How did we –as individuals and as a society – come to accept certain knowledge as fact? In _Human Knowledge,_ Bertrand Russell questions the reliability of our assumptions on knowledge. This brilliant and controversial work investigates the relationship between ‘individual’ and ‘scientific’ knowledge. First published in 1948, this provocative work contributed significantly to an explosive intellectual discourse that continues to this day.

John Hospers' _Introduction to Philosophical Analysis_ has sold over 150,000 copies since its first publication. This new edition ensures that its success will continue into the twenty-first century. It remains the most accessible and authoritative introduction to philosophy available using the full power of the problem-based approach to the area to ensure that philosophy is not simply taught to students but practised by them. The most significant change to this edition is to respond to criticisms regarding the omission in the (...) third edition of the famous opening chapter. A brand new chapter, Words and the World, replaces this in the fourth edition - which now features a large number of examples and illustrative dialogues. The rest of the text has been thoroughly revised and updated to take account of recent developments in some areas of philosophy. (shrink)

In this 1958 book, Professor Hanson turns to an equally important but comparatively neglected subject, the philosophical aspects of research and discovery.

In the course of the discussion, Professor Quine pinpoints the difficulties involved in translation, brings to light the anomalies and conflicts implicit in our ...

An in-depth look at the science of ancient Greece, this volume examines the influence of antique philosophy on 17th-century thought. Additional topics embrace many elements of modern physics: the empirical basis of quantum mechanics, wave-particle duality and the uncertainty principle, and the action-at-a-distance theory of Wheeler and Feynman. 1961 edition.

Introduction: Science and Common Sense Long before the beginnings of modern civilization, men ac- quired vast funds of information about their environment. ...

A scientific community cannot practice its trade without some set of received beliefs. These beliefs form the foundation of the "educational initiation that prepares and licenses the student for professional practice". The nature of the "rigorous and rigid" preparation helps ensure that the received beliefs are firmly fixed in the student's mind. Scientists take great pains to defend the assumption that scientists know what the world is like...To this end, "normal science" will often suppress novelties which undermine its foundations. Research (...) is therefore not about discovering the unknown, but rather "a strenuous and devoted attempt to force nature into the conceptual boxes supplied by professional education". (shrink)

Thomas S. Kuhn's classic book is now available with a new index.

A collection of some of Sellars' lectures and articles from 1951 to 1962.

The Theory of Relativity and A Priori Knowledge will hereafter be cited as "RAK. " The German edition is out of print. 2 H. Reichenbach, The Philosophy of ...

This collection of six essays centers on Professor Koyre;'s great theme: the relative importance of metaphysics and observation, with controlled experiment a kind of marriage between the two. Professor Koyre;'s thesis might be summed up as a claim that when one is seeking to explain the scientific revolution, attention must be concentrated on the philosophical outlook of the scientist and away from speculative theories. At the time of his death, Alexandre Koyre; was a professor at the Ecole Pratique des Hautes (...) Études (Sorbonne) and a memeber of the Institute for Advanced Study in Princeton. (shrink)

Instrumentalism is an approach to science that treats a theory as a tool and only as a tool for computation; it dispenses with the concept of truth.Conventionalism treats a theory as true by convention if it forms a pattern of observations from which correct predictions can be made.Operationalism denies meaning to the concepts of a theory unless they can be defined operationally. It is argued in this paper that truth-value is indispensable to science, because a theory can be rejected only (...) if an empirical consequence is false and if falsity of a conclusion entails falsity of a premise. This undermines the above positions. The fourth interpretation isinduction. Induction, by contrast, uses the notion of truth-value. What is focused on here is its reliance on the ultimacy ofobservation. The present thesis is that instrumentalism, conventionalism, and induction are different attempts to handle observations. The common problem is the gap between data and theory.All these interpretations share a philosophy of observationalism. The aim of this paper is to show that the several orthodox interpretations of science all fail to solve the problem of the data-theory gap, and to show that they all presuppose a philosophy of observation. (shrink)

We have seen that the operational imperative is a prescriptive thesis about formulations of theories which imposes restrictions on the sorts of theories science may employ. We assessed the operational imperative by investigating a number of relationships holding between theory formulations, theories, physical systems, and phenomena, and then applying our findings to the operational imperative. These applications showed that the operational definitions required by the operational imperative were not definitions at all, being rather statements of putative empirical regularities holding between (...) particulars which in effect are formulations of empirically true or false theories. From this fact it followed that the supposed epistemic pay-offs of following the operational imperative fail to accrue: Operational definitions do not enable one to go deductively from knowledge of observables to knowledge of unobservables, and operational definitions do not provide a means for testing theories about unobservable phenomena. As such the operational imperative should be rejected in both its weak and strong versions. However, we did discover a grain of truth in the observational imperative — namely that theories with non-observable parameters are testable only if these parameters have observable manifestations. But that grain of truth does not lead to the operational imperative as typically advanced unless one embraces certain epistemological theories about observation which recent work on observation makes highly doubtful. (shrink)

Achinstein, Putnam, and others have urged the rejection of the received view on theories (which construes theories as axiomatic calculi where theoretical terms are given partial observational interpretations by correspondence rules) because (i) the notion of partial interpretation cannot be given precise formulation, and (ii) the observational-theoretical distinction cannot be drawn satisfactorily. I try to show that these are the wrong reasons for rejecting the received view since (i) is false and it is virtually impossible to demonstrate the truth of (...) (ii). Nonetheless, the received view should be rejected because it obscures a number of epistemologically important features of scientific theorizing. I show this by sketching an alternative analysis which reveals some of these features and gives a more faithful picture of scientific theorizing. (shrink)

The paper has two main aims. The first is to reformulate Hempel's version of the thesis of the symmetry of explanation and prediction, as regards the deductive covering-law model, so as to generalise it and make it no longer subject to some of the criticisms which have been directed at it (Section II). The second aim is to consider, with special critical reference to Hempel's recent treatment in Aspects of Scientific Explanation (New York and London, 1965), some central criticisms of (...) both the constituent parts of the above symmetry thesis, viz. that adequate explanations are potentially predictive (Section III), and that adequate predictive arguments are potentially explanatory (Section IV). (shrink)

This volume consists of the first of the John Dewey Lectures delivered under the auspices of Columbia University's Philosophy Department as well as other essays by the author. Intended to clarify the meaning of the philosophical doctrines propounded by Professor Quine in 'Word and Objects', the essays included herein both support and expand those doctrines.

There has been considerable optimism recently, among philosophers and neuroscientists, concerning the prospect for major discoveries about the neurophysiological basis of mind. The support for this optimism has been extremely abstract and general. I wish to present some grounds ..

An important aspect of Sellars' philosophy is his attempt to explicate the concept of thought on the "model" of the concept of speech. More specifically, Sellars has argued that the intentionality of "inner" episodes or thoughts is to be understood in terms of the "semantical" characteristics of intelligent linguistic behavior, and not the other way around as the "classical tradition" had supposed.To avoid misunderstanding, it is important to realize that Sellars' claim, as he explains, in Aristotelian terminology, is a claim (...) "in the order of conceiving" as contrasted with "the order of being." That is, Sellars accepts, as an integral part of his theory, the classical claim that meaningful speech is the manifestation or overt causal expression of ''inner" thoughts, but argues that our concept of such thoughts is a derivative concept, a concept which, in the order of theoretical reconstruction, is "modelled on," is an analogical extension of, the concept of meaningful linguistic behavior. (shrink)