Historically, Ehrenfest’s theorem is the first one which shows that classical physics can emerge from quantum physics as a kind of approximation. We recall the theorem in its original form, and we highlight its generalizations to the relativistic Dirac particle and to a particle with spin and izospin. We argue that apparent classicality of the macroscopic world can probably be explained within the framework of standard quantum mechanics.

Our article is an overview of a selection of findings in physics relating to the issue of time—we do not present in it any “time theory” of our own. After making some general remarks on the issue of time, we present historical outline and a brief description of the current state of time interval measurements. Subsequently, we go on to discuss certain (relating to the concept of time) consequences of both theories of relativity: special and general. Here, time is a (...) geometrical component of space-time continuum. Following section is dedicated to time in the so-called Hamiltonian formulations of the theory of particles, where it appears as a parameter of evolution. The last section contains remarks referring to certain attempts of going beyond the recognized physical theories relating to the question of time. (shrink)

Our article is an overview of a selection of findings in physics relating to the issue of time—we do not present in it any “time theory” of our own. After making some general remarks on the issue of time, we present historical outline and a brief description of the current state of time interval measurements. Subsequently, we go on to discuss certain (relating to the concept of time) consequences of both theories of relativity: special and general. Here, time is a (...) geometrical component of space-time continuum. Following section is dedicated to time in the so-called Hamiltonian formulations of the theory of particles, where it appears as a parameter of evolution. The last section contains remarks referring to certain attempts of going beyond the recognized physical theories relating to the question of time. (shrink)

Democracy - hope or illusion? Blooming, failing or declining? Our doubts and hesitation make part of unbending efforts to endorse and explain democracy. Who is right - the custodians of promise or the prophets of decline? The book concentrates on doubts. The author tries to explore «the other side of the moon», emphasizing the role of critical thinking, opposing a main-current optimism. Defending democracy we want to generate hope, but hoping may be a dangerous craft. Protecting our hope we are (...) prone to believe that democracy - even if it is not a full success story - is justified in its nature and out of question. How much do we have to forget to sanction this view? This is, in fact, the main question the book raises. It gives voice to those who never, in their writing on democracy, used a flattering tone. Starting with Greek giants - Plato and Aristotle - up to modern and most recent times, going through a broad field of revealing criticism, leaving us with an unsettling feeling that democracy is rather something to be explained than something to be celebrated. Living in democracy, lamenting its underperformances, we must not overlook a fundamental question - in what part do our disappointments reflect the «art of forgetting», allowing us to cast into oblivion all serious doubts originating in a critical discourse on modernity and democracy? (shrink)

The book by professor Stanisław Kowalczyk, renowned scholar in the field of social philosophy, is, without doubt, one of the most important studies on the idea of freedom. The concept of freedom is as old as mankind. It has many meanings and has been interpreted in many different ways. For instance, we also have the word „liberty," which means „freedom or right" and is synonymous with the word freedom, which means „the condition of being free." The author indicates that (...) in our times the notion of freedom is most frequently used; however, it is often misused or deceptive. Mass media and people of all walks of life talk of liberty; everyone talks of freedom and, for many, it is the highest value. Longing for freedom is rooted in the heart of every human being, for freedom is an existential correlate and the fulfilment of the rational human being. The semantic confusion about the notion of freedom leads to many misuses of the concept. Personalism, as a philosophical concept in which a person stands in the centre of all discussion, serves as a framework for the author's delineation on the concept of freedom. He further states that the appropriate understanding of this value is possible in the context of the personalistic interpretation of a human being. This is the focus of this informative and insightful book. (shrink)

In the first part I focus on the issue of progress, in particular progress in philosophy. Philosophical progress has a special property that it shares with the process of becoming a better person. It is constantly finding yourself “on the way”. This path is not only anchored in the Absolutely Perfect but it conditions and stimulates the reflection towards the truth about the relationship between Him and us. We can assume that the core of this reflection is philosophy. The second (...) part is devoted to the paradoxical nature of the most generally understood memory. I assume that the condition of awareness of a certain content is its outdatedness, that is, its transfer to the sphere of memory. Memory is a constantly updated and constantly re-ordered picture of everything that the subject has ever relegated from being, so that it can be replaced by something else. The foundation of this order is a certain axiology. In the third part I show how the sketched concept of memory is used to describe the mechanism of the evolution of philosophical thought. The “on the way” philosophy would consist of two constantly repeated activities: on reconstructing what is to be denied, and thus on the recognition of the previous philosophical achievements in its totality, and on its negation. This denial would concern the whole of this achievement as an axiologically reconstructed unity. The new system is only realized as a series of consequences of the negation of the current state. The vast majority of philosophical reflection focuses on the constitution of this current state, its supposed unity. In the short part of the fourth, I draw up prospects for further deliberations. (shrink)

This article deals with basic changes in Polish society over past 20 years. On the basis of sociological surveys, the author attempts to answer the following questions: to what extent has systemic change brought about significant changes in social stratification? In which dimensions did it take place? What are the consequences of these changes for individuals and the social system? How does Polish society differ from others? As for social stratification, the only clear and unambiguous tendencies were growing inequality and (...) more marked effects of educational credentials on incomes. Contrary to expectations, barriers to mobility have not become more rigid, nor is there any clear evidence of social origins mattering more for educational achievement. Transformations in social structure have been accompanied by rising discontent with material conditions, the government, and the system as a whole. Interestingly, this wave runs counter to positive evaluations in the private sphere, displayed in relatively high self-esteem and satisfaction with friendships and family life. These optimistic attitudes contrasted with disapproval of the political class, and with the workings of democracy. The degree of legitimization of the political system in Poland appears to be the lowest among 21 European societies. When compared with the capitalist West, this constitutes one of the obstacles to modernization along Western lines. (shrink)

The book is devoted to the thought of one of the 20th century's most interesting philosophers of religion. Heschel, a traditional Polish Jew who became a modern thinker, was also an impressive prophet of interreligious dialogue.

Das Buch ist historisch-systematisch angelegt. In ihm stellt der Verfasser in interdisziplinarer - philosophischer, psychologischer und theologischer - Perspektive verstehend, sympathisierend, aber auch kritisch die Funktion des Christentums bei C. G. Jung dar. Fur ihn ist der Mensch von Natur aus religios und erlebt Gott in seiner Seele. Demzufolge liegt das Wesen des Christentums im Erleben, in dem der Glaubige von unbewussten Machten uberwaltigt wird. Religiose Erfahrung ist daher ein Erleben der Archetypen des kollektiven Unbewussten, was bedeutet, dass Gott und (...) das Unbewusste im religiosen Erlebnis nicht zu unterscheiden sind. Jung betrachtet Religionen als wahr, insofern sie die Krankheiten der Seele heilen. Sie therapieren deshalb, weil in ihnen die heilenden Krafte des Unbewussten besonders fruchtbar wirken. (shrink)