This classic remains one of Karl Popper's most wide-ranging and popular works, notable not only for its acute insight into the way scientific knowledge grows, but also for applying those insights to politics and to history.

‘If in this book harsh words are spoken about some of the greatest among the intellectual leaders of mankind, my motive is not, I hope, to belittle them. It springs rather from my conviction that, if our civilization is to survive, we must break with the habit of deference to great men.’ - Karl Popper, from the Preface Written in political exile during the Second World War and first published in two volumes in 1945, Karl Popper’s The Open (...) Society and Its Enemies is one of the most influential books of all time. Hailed by Bertrand Russell as a ‘vigorous and profound defence of democracy’, its now legendary attack on the philosophies of Plato, Hegel and Marx exposed the dangers inherent in centrally planned political systems and through underground editions become an inspiration to lovers of freedom living under communism in Eastern Europe. Popper’s highly accessible style, his erudite and lucid explanations of the thoughts of great philosophers and the recent resurgence of totalitarian regimes around the world are just three of the reasons for the enduring popularity of The Open Society and Its Enemies and why it demands to be read today and in years to come. (shrink)

Karl Ameriks here collects his most important essays to provide a uniquely detailed and up-to-date analysis of Kant's main arguments in all three major areas of his work: theoretical philosophy (Critique of Pure Reason), practical philosophy (Critique of Practical Reason), and aesthetics (Critique of Judgment). Guiding the volume is Ameriks's belief that one cannot properly understand any one of these Critiques except in the context of the other two. The essays can be read individually, but read together they offer (...) a comprehensive guide to the main themes of the most influential of all modern philosophical systems. (shrink)

This article explores the roots of action in behavior. Departing from the standard understanding of action as ‘intentional behavior’, we argue that this view is often based on the underestimation of the intentional structures that are already operative within behavior. Distinguishing between a broader and a narrower meaning of intentionality, we then elaborate on the processes that lead from the diffuse and operative intentionality of behavior to the focused intentionality of action. In order to properly appreciate these processes, we show (...) that a reassessment of the phenomenon of attention – which takes into consideration its double (passive and active) nature as well as its social embedment – is required. Finally, we discuss the interplay between the obtained reframing of the genesis of intentional actions with the phenomenon of social ascription. (shrink)

Errol Lord’s The Importance of Being Rational is a beautiful presentation of how one might defend a reasons-first approach to rationality. I’m going to focus these comments on some of the larger systematic ambitions of the book. In doing so, my hope is to draw Lord out concerning the larger project of which the book is a part and to raise some more general questions about the project of defining rationality in terms of reasons. In doing so, my focus with (...) be on the relationship between the reasons-first program and a more traditional view, which we might call the reason-first program. (shrink)

'Never before has there been so many and such dreadful weapons in so many irresponsible hands.' - Karl Popper, from the Preface All Life is Problem Solving is a stimulating and provocative selection of Popper's writings on his main preoccupations during the last twenty-five years of his life. This collection illuminates Popper's process of working out key formulations in his theory of science, and indicates his view of the state of the world at the end of the Cold War (...) and after the collapse of communism. (shrink)

One of the most influential thinkers of the 20th century, Sir Karl Popper here examines the problems connected with human freedom, creativity, rationality and the relationship between human beings and their actions. In this illuminating series of papers, Popper suggests a theory of mind-body interaction that relates to evolutionary emergence, human language and what he calls "the three worlds." Rene; Descartes first posited the existence of two worlds--the world of physical bodies and the world of mental states. Popper argues (...) for the existence of "world 3" which comprises the products of our human minds. He examines the interaction between mental states--hopes, needs, plans, ideologies or hypotheses--and the physical states of our brain. Popper forcefully argues against the materialism forwarded by many philosophers which denies the existence of mental states. Instead, he demonstrates that the problem of the interaction between mental and physical states remains unresolved. Knowledge and the Body-Mind Problem is based on Popper's never-before published lectures at Emory University in 1969. Popper has extensively revised the lectures but has retained their accessible format. He has also incorporated some of the discussions which followed the lectures, providing an engaging exchange between the philosopher and his audience. (shrink)

While attention is widely recognised as central to perception, the term is often used to mean very different things. Prominent theories of attention — notably the premotor theory — relate it to planned or executed eye movements. This contrasts with the notion of attention as a gain control process that weights the information carried by different sensory channels. We draw upon recent advances in theoretical neurobiology to argue for a distinction between attentional gain mechanisms and salience attribution. The former depends (...) upon estimating the precision of sensory data, while the latter is a consequence of the need to actively engage with the sensorium. Having established this distinction, we consider the intimate relationship between attention and salience. (shrink)

A sampling of the philosophical writings of Karl Popper includes discussions of rationalism, knowledge, human freedom, and the scientific method.

I. Altertum und Mittelalter--II. Die Philosophie der Neuzeit bis Kant--III. Die Philosophie des 19. und 20. Jahrhunderts.

The intent of Jaspers' philosophizing then is simply to recall us to our authentic situation. This recall is not itself a doctrine; it is only the stimulus to an inward action each must perform for himself in communication with others. Jaspers' Existenz-philosophy is thus an attempt to consider and enact human honesty; it is philosophy, not as wisdom, but as the love of wisdom.

Die zukunft der philosophie.--Das ethische zeitalter.--Die frauen in der philosophie.--Philosophenehen.--Die sphinx des pessimismus.--Stirner.--Philosophie und dichtung.

v. 1. Philosophical world orientation.--v. 2. Existential elucidation.--v. 3. Metaphysics.

THE PAPER IS A FOOTNOTE TO C B MARTIN AND KARL PFEIFER, "INTENTIONALITY AND THE NON-PSYCHOLOGICAL," "PHIL PHENOMENOL RES" 46 (1986) 531-554. A CHARACTERIZATION OF INTENTIONALITY NOT CONSIDERED THEREIN IS SHOWN, NONETHELESS, ALSO TO FAIL TO DISTINGUISH BETWEEN INTENTIONAL STATES AND MERELY PHYSICAL CAUSAL CAPACITIES.

English summary: In philosophy, examples are usually employed as illustrations of already determined abstract or general thoughts. In contrast to this view, the contributions of this volume focus on the exemplary and normative function of examples, as guides in order to find a not yet given universal or generality. German description: Der Band diskutiert die theoretische und praktische Bedeutung des Exemplarischen als ein Individuelles, das selbst als Manifestation eines Allgemeinen verstanden wird. Gegenuber der gewohnlichen Auffassung, derzufolge Beispiele lediglich zur nachtraglichen (...) Illustration bereits bestimmter abstrakter Gedanken verwendet werden, beschaftigen sich die Beitrage des Bandes mit dem Beispiel in seiner exemplarischen Bedeutung, bei der das Individuelle selbst als Manifestation des Allgemeinen verstanden wird. Die klassischen Bereiche, in denen diese Rolle und Funktion des Exemplarischen explizit thematisiert werden, sind die Rhetorik, die Kunsttheorie sowie die Didaktik. Demgegenuber spielt das Exemplarische in der allgemeinen Reflexion der theoretischen und praktischen Philosophie keine oder allenfalls eine sehr untergeordnete Rolle. Diese theoretische Vernachlassigung steht in einem auffallenden Gegensatz zur operativen Bedeutung des Exemplarischen im Kontext unseres theoretischen und praktischen Wissens. (shrink)

With the publication of Reason and Existenz, originally delivered as a series of five lectures at the University of Groningen in 1935, one of the most important of Jaspers's philosophic works is made available to the English-speaking world. It concerns itself with a general statement of the principal philosophic categories which have given uniqueness to Jaspers's thinking: existence, freedom, and history, and the limit-situations of death, suffering, and sin. Written shortly after Jaspers's major systematic work and before his analysis of (...) the problem of truth, Reason and Existenz occupies a primary position in the development of his thought. (shrink)

A 2016 article in the Journal of Consumer Research argues that busyness has become a status symbol. In earlier societies, such as the 19th century Thorstein Veblen describes in his Theory of the Leisure Class, the wealthy conspicuously avoided work. They saw idleness as an ideal. By contrast, contemporary Americans praise being overworked. They see busy individuals as possessing rare and desirable characteristics, such as competence and ambition. -/- To respond philosophically to our new overworked overlords and status icons, we (...) need only return to the 19th century Danish philosopher Søren Kierkegaard. Kierkegaard is known for his philosophical account of boredom, which is often associated with idleness. If busyness is the opposite of idleness, perhaps he can diagnose busyness also. (shrink)

This paper is a response to Justin Bell's “Depression Applied to Moral Imagination: Deweyan Tools for Moral Inquiry." The author first contextualizes Bell’s use of evolutionary psychology in the context of two influential philosophical engagements with medicine: Alasdair MacIntyre’s concept of the therapeutic and the recent turn towards person-centered medicine over disease-centered medicine. He then raises two concerns about the accounts of depression used in the sources Bell draws on: the way they identify depression as oriented towards social problems and (...) the way they view depression as intentional. (shrink)