Modern philosophy of science was, initially, an epistemology of science based on the logical analysis of the language of science. It was superseded by a “sociological epistemology,” according to which the acceptance of scientific statements and theories depends on conditioningscoming from the social context and powers, and this view has fueled anti-scientific attitudes.This happened because the sociological turn still expressed an epistemology of science. Science, however, is not only a system of knowledge, but also a complex human activity. Hence, ethical, (...) political, social, religious issues appear legitimate if they concern “doing science.”Therefore, we must “rethink” philosophy of science, accepting in it also an axiology of science that could enable us to retain the cognitive value of science and at the same time to make techno-scientific activity compatible with the satisfaction of a great variety of values that inspire our societies. (shrink)
A lógica, considerada como uma disciplina técnica iniciada por Aristóteles e tipicamente representada pela variedade de cálculos lógicos modernos, constitui um esclarecimento e refinamento de uma convicção e prática presentes no senso comum, ou seja, o fato de que os seres humanos crêem que a verdade pode ser adquirida não apenas por evidência imediata, mas também por meio de argumentos. Como uma primeira aproximação, a lógica pode ser vista como um registro “descritivo” das principais formas de argumento presentes no senso (...) comum, mas o fato de que alguns desses padrões possam realmente permitir a derivação de consequências falsas a partir de premissas verdadeiras impõe a tarefa de tornar explícitos que padrões correspondem a um “raciocínio correto” e quais não. Nesse ponto, a lógica (que contém a apresentação de tais padrões) parece ser dotada de uma característica “normativa”. Isso equivale a dizer se pretende que os cálculos lógicos espelhem adequadamente a noção intuitiva de “consequência lógica” e que nesse sentido eles não podem ser totalmente arbitrários ou convencionais, mas devem satisfazer certos requisitos básicos tais como as condições de correção e (tanto quanto possível) de completude semântica. Em tal forma eles são “julgados” de acordo com os requisitos fundamentais presentes no nível do senso comum e aparecem como “idealizações” das espécies de raciocínio praticadas no senso comum. Por essa razão também vários tipos de cálculos lógicos são inteiramente justificados uma vez que tornam explícitos, de uma forma idealizada, os modos concretos de raciocinar que são impostos pelo particular domínio de referência da disciplina na qual são usados e que são basicamente reconhecidos no senso comum. DOI: 10.5007/1808-1711.2011v15n1p15. (shrink)
A sociological study of science is not very recent and has never been seen as particularly problematic since science, and especially modern science, constitutes an impressive and extremely ramified "social system" of activities, institutions, relations and interferences with other social systems. Less favourable, however, has been the consideration of a more recent trend in the philosophy of science known as the "sociological" philosophy of science, whose most debatable point consists in directly challenging the traditional epistemology of science and, in particular, (...) in stripping scientific knowledge of its most appreciated characteristics of objectivity and rigour . A vicious circle seems to lie at the root of this sociological epistemology because, on the one hand, criticism of the traditional concept of scientific knowledge is developed by relying upon sociology, but this, on the other hand is reasonable only if sociology is credited with the status of a reliable instrument, that is, because it has been recognized as a science through an epistemological debate . In this paper it is shown that not all circles are vicious: in particular, feedback loops, positive and negative, are normally considered in cybernetic models of various processes. Negative feedback loops are fundamental in self-regulating processes and have already occurred from time to time in readjusting the concept of science itself. Therefore, a sociological epistemology of science can contribute to a more careful analysis of the real meaning and purport of the cognitive aspect of science, provided that it is not pushed to the self-defeating extreme of challenging the legitimacy of considering objectivity and rigour as the characteristic features of scientific knowledge. (shrink)
The paideia of modernity is now in crisis. What is needed is a deeper, global understanding of the human being, and a broader determination of its ends and needs. Such a picture of the human being, its life, its real problems and expectations, can be called a paideia, in a sense that is the hard core of the different modulations this concept has received during its long history. It is suggested that this new paideia will be of service to humanity (...) only insofar as it bridges the gap between the sciences and the humanities, between facts and values. (shrink)
In medicine the understanding and interpretation of the complex reality of illness currently refers either to an organismic approach that focuses on the physical or to a 'holistic' approach that takes into account the patient's human sociocultural involvement. Yet as the papers of this collection show, the suffering human person refers ultimately to his/her existential sphere. Hence, praxis is supplemented by still other perspectives for valuation and interpretation: ethical, spiritual, and religious. Can medicine ignore these considerations or push them to (...) the side as being subjective and arbitrary? Phenomenology/philosophy-of-life recognizes all of the above approaches to be essential facets of the Human Condition (Tymieniecka). This approach holds that all the facets of the Human Condition have equal objectivity and legitimacy. It completes the accepted medical outlook and points the way toward a new `medical humanism'. (shrink)
Until the middle of the present century it was a commonly accepted opinion that theory change in science was the expression of cumulative progress consisting in the acquisition of new truths and the elimination of old errors. Logical empiricists developed this idea through a deductive model, saying that a theory T superseding a theory T must be able logically to explain whatever T explained and something more as well. Popper too shared this model, but stressed that T explains the old (...) known facts in its own new way. The further pursual of this line quickly led to the thesis of the non-comparability or incommensurability of theories: if T and T are different, then the very concepts which have the same denomination in both actually have different meanings; in such a way any sentence whatever has different meanings in T and in T and cannot serve to compare them. owing to this, the deductive model was abandoned as a tool for understanding theory change and scientific progress, and other models were proposed by people such as Lakatos, Kuhn, Feyerabend, Sneed and Stegmüller. The common feature of all these new positions may be seen in the claim that no possibility exists of interpreting theory change in terms of the cumulative acquisition of truth. It seems to us that the older and the newer positions are one-sided, and, in order to eliminate their respective shortcomings, we propose to interpret theory change in a new way.The starting point consists in recognizing that every scientific discipline singles out its specific domain of objects by selecting a few specific predicates for its discourse. Some of these predicates must be operational (that is, directly bound to testing operations) and they determine the objects of the theory concerned. In the case of a transition from T to T, we must consider whether or not the operational predicates remain unchanged, in the sense of being still related to the same operations. If they do not change in their relation to operations, then T and T are comparable (and may sometimes appear as compatible, sometimes as incompatible). If the operational predicates are not all identical in T and T, the two theories show a rather high degree of incommensurability, and this happens because they do not refer to the same objects. Theory change means in this case change of objects. But now we can see that even incommensurability is compatible with progress conceived as the accumulation of truth. Indeed, T and T remain true about their respective objects (T does not disprove T), and the global amount of truth acquired is increased. (shrink)
Summary Philosophy of science is, in Italy, a relatively young field of research. The foreword of the paper gives some explanation of this fact, which is the consequence of a particular situation of Italian culture between the two world wars. When problems in this field began to be studied after the war, they were practically imported matter, and a rather long time was necessary before an original research started in this country. The beginning of it was marked by a profound (...) interest in mathematical logic and in the foundations of mathematics. More recently, also other topics in the philosophy of science (which is frequently called epistemology in Italy) have began to be studied, such as philosophy of physics, foundations of probability and inductive logic, philosophical problems of cybernetics, etc. The article gives a survey of these developments and offers an outline of the positions upheld by some more significant representatives of present philosophy of science in Italy, in the last section. (shrink)
