ArgumentThe question, how organisms obtain their specific complex and functional forms, was widely discussed during the eighteenth century. The theory of preformation, which was the dominant theory of generation, was challenged by different alternative epigenetic theories. By the end of the century it was the vitalist approach most famously advocated by Johann Friedrich Blumenbach that prevailed. Yet the alternative theory of generation brought forward by Caspar Friedrich Wolff was an important contribution to the treatment of this question. He turned his (...) attention from the properties of matter and the forces acting on it towards the level of the processes of generation in order to explain the constitution of organismic forms. By regarding organic structures and forms to be the result of the lawfulness of ongoing processes, he opened up the possibility of a functional but non-teleological explanation of generation, and thereby provided an important complement to materialist and vitalist approaches. (shrink)

Starting with the observation that there exist contradictory claims in the literature about the relationship between vitalism and emergentism—be it one of inclusion or, on the contrary, exclusion–, this paper aims at disentangling the vitalism–emergentism knot. To this purpose, after having described a particular form of emergentism, namely Lloyd Morgan’s emergent evolutionism, I develop a conceptual analysis on the basis of a distinction between varieties of monism and pluralism. This analysis allows me to identify and characterize several forms of vitalism (...) and emergentism, and a subsequent comparison between these forms constitutes the occasion for a clarification of the relationship between both doctrines. (shrink)

Regarding the epistemological borderlines between science and philosophy, this article approaches the human mind and ethics from biological and philosophical theories. For this purpose, the Darwinian theory of evolution by natural selection provides a scientific foundation to understand the human mind and ethics. However, not only Charles Darwin has studied mental faculties and ethics, this is also a topic researched by eminent contemporary paleontologists and biologists. Prior to modern biology, going back to Greek philosophy, philosophers have traditionally studied the human (...) mind and ethics, separating human beings and the rest of nature ontologically. Following modern biology, the philosopher Hans Jonas has developed a philosophical biology from the perspective of hermeneutical phenomenology to understand life. With the help of his hermeneutical phenomenology, Jonas has presented an ontological theory of organism-metabolism to understand the phenomenon of life from simple living beings to the human mind in relation to nature, based on the body. Recently, the evolutionary biologist Francisco Ayala has proposed a coherent scientific and philosophical theory about biological and cultural roots for ethics, considering the evolution of human mental and intellectual capacities and the three conditions for ethical behavior as a part of human intellectual capacity, which scientifically complements and informs Hans Jonas’s philosophical biology and ethics of responsibility. (shrink)

In recent cancer research, strong and apparently conflicting epistemological stances have been advocated by different research teams in a mist of an ever-growing body of knowledge ignited by ever-more perplexing and non-conclusive experimental facts: in the past few years, an 'organicist' approach investigating cancer development at the tissue level has challenged the established and so-called 'reductionist' approach focusing on disentangling the genetic and molecular circuitry of carcinogenesis. This article reviews the ways in which 'organicism' and 'reductionism' are used and opposed (...) in this context, with an aim at clarifying the debate. Methodological, epistemological and ontological implications of both approaches are discussed. We argue that the 'organicist/reductionist' opposition in the present case of carcinogenesis is more a matter of diverging heuristics than a claim about theoretical or ontological (ir)reducibility. As a matter of fact, except for the downward causation claim, which we question, we argue that the organicist arguments are compatible with the reductionist approach. Moreover, we speculate that both approaches, which currently focus on specific entities i.e., genes versus tissues, will need to shift their conceptual frameworks to studying complex arrays of relationships potentially ranging over several levels of entities, as is the case with 'systems biology'. (shrink)

A interrogação que preside a este ensaio não busca, à maneira heideggeriana, o impensado esquecimento de um certo desenvolvimento historial, mas há de apenas delimitar o estado da arte da visão cartesiana do mundo. Para o efeito, no entanto, não vai além do horizonte epistêmico da Filosofia da Biologia, porque o seu principal objectivo consiste em diagnosticar a “crise de identidade” da Biologia, cujo sucesso experimental não deve camuflar a sua “depressão epistemológica”. Na verdade, trata‑se de uma disciplina que, entre (...) física e metafísica, ainda não encontrou o seu espaço teórico. Ora, é possível remontar tal dificuldade à raiz filosófica da Modernidade. Assim sendo, impõe‑se uma avaliação da mutação paradigmática que Descartes introduz na ordem do saber, de acordo com a qual a investigação racional passa a ter por destino o domínio da Natureza. (shrink)

ArgumentAt the end of the seventeenth and beginning of the eighteenth century, ageing was specifically a medical issue. Indeed, on the one hand, ageing is a normal process of living; on the other hand, old age often entails specific pathologies. Is it really possible to dissociate old age from pathology? If so, how can we think of old age and explain both the necessity and the normality of it? If not, what is the cause of this dysfunction? Modern medical controversies (...) argue along the lines of the respective partisans ofiatromecanism, empirical medicine, and animist medicine. Furthermore, it progressively appears that the issue of aging must also be addressed within the social field, where old age is affected by sanitary, economic, and strategic conditions. Indeed, doctors, economists, and philosophers even tried to assess old age quantitatively with new methods of arithmetic. Thus, in this paper, we want to draw what constitutes the systems of knowledge of old age as a medical category located at the borderlines between epistemological, practical, and social challenges. (shrink)