Karl Popper is one of the greatest and most influential philosophers of the twentieth century. Originally published in German in 2000, Herbert Keuth's book is a systematic exposition of Popper's philosophy covering the philosophy of science (Part 1); social philosophy (Part 2); and metaphysics (Part 3). More comprehensive than any current introduction to Popper, it is suitable for courses in the philosophy of science and the philosophy of social science.

The present attempt to introduce the general philosophical reader to the Phenomenological Movement by way of its history has itself a history which is pertinent to its objective. It may suitably be opened by the following excerpts from a review which Herbert W. Schneider of Columbia University, the Head of the Division for Internc.. tional Cultural Cooperation, Department of Cultural Activities of Unesco from 1953 to 56, wrote in 1950 from France: The influence of Husser! has revolutionized continental philosophies, (...) not because his philosophy has become dominant, but because any philosophy now seeks to accommodate itself to, and express itself in, phenomenological method. It is the sine qua non of critical respectability. In America, on the contrary, phenomenology is in its infancy. The aver age American student of philosophy, when he picks up a recent volume of philosophy published on the continent of Europe, must first learn the "tricks" of the phenomenological trade and then translate as best he can the real import of what is said into the kind of analysis with which he is familiar....... No doubt, American education will gradually take account of the spread of phenomenological method and terminology, but until it does, American readers of European philosophy have a severe handicap; and this applies not only to existentialism but to almost all current philosophicalliterature. (shrink)

Acclaimed throughout the world as a philosopher of liberation and revolution, Herbert Marcuse is one of the most influential thinkers of the twentieth century. His penetrating critiques of the ways modern technology produces forms of society and culture with oppressive modes of social control indicate his enduring significance in the contemporary moment. This collection of unpublished or uncollected essays, unfinished manuscripts, and correspondence between 1942 and 1951, provides Marcuse's exemplary attempts to link theory with practice, and develops ideas that (...) can be used to grasp and transform existing social reality. These papers vividly chronicle Marcuse's increasing, yet reluctant estrangement from Max Horkeimer, director of the Institute for Social Research and his years as an analyst with various U.S. government agencies. Marcuse's later attempts to link theory and practice in the 1960s and 1970s in regard to the New Left, National Liberation Movements and other new social movements were grounded in his work from the 1940s. As the 1940s witnessed the rise to global prominence of German fascism and its defeat in World War Two, and the emergence of the Cold War, Marcuse strived to preserve the radical vision of his youth during a difficult historical period while many turned toward more conservative positions. Precisely the sort of broad theoretical and political theorizing that Marcuse undertook througout his life is needed today to analyze the momentous changes that we are currently undergoing. Excerpt: Personal history is interwoven with intellectual and political events in these papers. We debated whether letters belonged here: whether some should be published at all. My father had a deep sense of personal privacy, both as a character trait and as a political expression of resistance to the commodification of the private. Yet the letters contain substantive discussions also. We could have edited out, expurgated some of the material. While not publishing every letter my father wrote, our selection was based on interest, and every letter that is included is included in full. That decision was in part painful for me personally. The juxtaposition of the letters to Horkeimer and the exchange with Heidegger highlights the point. --from the Foreword by Peter Marcuse. (shrink)

-- Douglas Kellner, University of Texas, Austin.

Machine generated contents note: 1. The Computability Concept;2. General Recursive Functions;3. Programs and Machines;4. Recursive Enumerability;5. Connections to Logic;6. Degrees of Unsolvability;7. Polynomial-Time Computability;Appendix: Mathspeak;Appendix: Countability;Appendix: Decadic Notation;.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in (...) the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (shrink)

v. 1. Assessment methods -- v. 2. Developments and social problems -- v. 3. Extensions and limitations.

Both and agree that there are universals—that qualities are universals. To say that the quality white is a universal is to say, in part, that one and the same thing is connected in some way to both Plato and Socrates and accounts for the truth of the sentences "Plato is white" and "Socrates is white." To put it another way, the term "white" in both sentences refers to the same entity. What arguments are there for such a view? Russell elegantly (...) put forth the classic argument in "On the Relations of Universals to Particulars." To deny universals is to assert that the quality attributed to Socrates is not one and the same with the quality attributed to Plato. The quality "in" each is numerically distinct and, furthermore, no one thing accounts for these distinct qualities being of the same kind. [I mention this latter point since one might, on a version of, hold that there are particular qualities as well as universal qualities. The former account for the whiteness of particular patches; the latter for such particular whitenesses being just that.] One must then hold that such particular qualities are related in some way, since they are the entities in virtue of which we truly assert that both things are white. One must then specify such a relation. The obvious point is that such a relation will either be taken as a universal or a particular instance. If a particular then the original problem recurs when we introduce a third white patch or a pair of black patches. If admitted as a universal then the view finally accepts universals, albeit relational ones. No other alternative can answer the original question—to account for Socrates and Plato having the same color. That is, no alternative acknowledging only individuals—that denies the two patches are connected, in some way, to one and the same entity—can prevent the recurrence of exactly the same kind of question we started out with. Let us consider the case of particulars. One may argue that just as universals account for the sameness of quality, something must account for the difference of two patches which, conceivably, have all their nonrelational qualities in common. This something, the ground of numerical difference, is considered to be a substratum which stands in a unique relation or connection with universals to form or constitute facts and the things we started out with, Plato and Socrates. These ordinary things are thought of as composed of a substratum and universals connected together. Facts about such things may be composed of the substratum and one universal. The facts are about the things since the same substratum is a constituent of both sorts of entities. Such substrata account for the difference of the two patches; for there being two and not one thing. These substrata, in turn, are held to be simply different. At this point one may balk. If substrata are held to be simply different, why bother with them at all? Why not hold that Socrates and Plato are composites, not classes, of universals, and that they are different composites of the same universals? They just simply differ. If substrata can simply differ, why may not composites of universals simply differ? The proponent of substrata must retort that since Plato and Socrates are composite entities they cannot simply differ but must be held to differ in a constituent. Only simple entities can simply differ. Let me call this assertion the axiom of difference. The first point to note is that it is a necessary assumption in the argument to establish the need for substrata in an adequate ontology. We must then inquire why some accept, implicitly or explicitly, such an axiom. (shrink)

|347| Introduction À titre provisoire, commençons par déterminer l’objet de notre enquête, en le prenant tel qu’il nous est donné. Le matérialisme historique intervient dans le contexte gnoséologique du marxisme ; or ce dernier n’apparaît pas comme une théorie scientifique, comme un système de vérités dont le sens résiderait uniquement dans leur exactitude en tant que connaissances, mais comme une théorie de l’agir social, de l’acte historique. Le marxisme est la théorie de la révolution prol...

Certains physiciens modernes ont cru pouvoir tirer, de leurs recherches sur la structure de l’atome, la négation du déterminisme universel. Mais ils confondent, dans leurs déductions, l'indétermination avec le hasard ; et ils acceptent l’existence réelle du hasard. D’ailleurs Max Planck, qui a découvert les quanta, n’accepte pas l'indéterminisme, non plus que le professeur Einstein.

They say of morality, as St. Augustine said of Time, I know what it is when you do not ask me If this theory wexetrue, 9 PRACTICAL ETHICS mankind would be ...

Herbert, Dilinie Christmas is a special time in the Christian calendar. The Christmas story begins with a heavily pregnant Mary riding on the back of a donkey alongside her husband into the city of Bethlehem. Their search for board to see them till the morning is futile. A somewhat kind Inn keeper shows them to his stable, where the animals are accommodated.. That night Mary gives birth to baby Jesus and she lays the newborn down in a manger. The (...) Inn is symbolic of prosperity for those fortunate to share in its comforts. To have to reside instead in the stable reflects that there is not space in the Inn and some people, for not immediately apparent reasons, live on the outside. (shrink)