Ancient Greek philosophers were the first to postulate the possibility of explaining nature in theoretical terms and to initiate attempts at this. With the rise of monotheistic religions of revelation claiming supremacy over human reason and envisaging a new world to come, studies of the natural order of the transient world were widely considered undesirable. Later, in the Middle Ages, the desire for human understanding of nature in terms of reason was revived. This article is concerned with the fundamental reversal (...) of attitudes, from "undesirable" to "desirable", that eventually led into the foundations of modern science. One of the earliest, most ingenious and most interesting personalities involved was Eriugena, a theologian at the Court of Charles the Bald in the 9th century. Though understanding what we call nature is only one of the several aspects of his philosophical work, his line of thought implies a turn into a pro-scientific direction: the natural order is to be understood in abstract terms of "primordial causes"; understanding nature is considered to be the will of God; man encompasses the whole of creation in a physical as well as a mental sense. Basically similar ideas on the reconciliation of scientific rationality and monotheistic religions of revelation were conceived, independently and nearly simultaneously, by the Arab philosopher al-Kindi in Bagdad. Eriugena was more outspoken in his claim that reason is superior to authority. This claim is implicit in the thought of Nicholas of Cusa with his emphasis on human mental creativity as the image of God's creativity; and it is the keynote of Galileo's "Letter to the Grand Duchess Christina" some 800 years later, the manifesto expressing basic attitudes of modern science. (shrink)

Ancient Greek philosophers were the first to postulate the possibility of explaining nature in theoretical terms and to initiate attempts at this. With the rise of monotheistic religions of revelation claiming supremacy over human reason and envisaging a new world to come, studies of the natural order of the transient world were widely considered undesirable. Later, in the Middle Ages, the desire for human understanding of nature in terms of reason was revived. This article is concerned with the fundamental reversal (...) of attitudes, from “undesirable” to “desirable”, that eventually led into the foundations of modern science. One of the earliest, most ingenious and most interesting personalities involved was Eriugena, a theologian at the Court of Charles the Bald in the 9th century. Though understanding what we call nature is only one of the several aspects of his theological work, his line of thought implies a turn into a pro-scientific direction: the natural order is to be understood in abstract terms of ‘primordial causes’; understanding nature is considered to be the will of God; man encompasses the whole of creation in a physical as well as a mental sense. Basically similar ideas on the reconciliation of scientific rationality and monotheistic religions of revelation were conceived, independently and nearly simultaneously, by the Arab philosopher al-Kindi in Bagdad. Eriugena was more outspoken in his claim that reason is superior to authority. This claim is implicit in the thought of Nicholas of Cusa with his emphasis on human mental creativity as the image of God’s creativity; and it is the keynote of Galileo’s ‘Letter to the Grand Duchess Christina’ some 800 years later, the manifesto expressing basic attitudes of modern science. -/- This article in English is based on the monography (in German): A. Gierer “Eriugena, al-Kindi, Nikolaus von Kues - Protagonisten einer wissenschaftsfreundlichen Wende im philosophischen und theologischen Denken”, Acta Historica Leopoldina 29 (1999), Barth Verlag in MVH Verlage Heidelberg, ISBN: 3-335-00652-6, which is also available online on this server. -/- -/- . (shrink)

This is an English translation of my essay: Alfred Gierer Wissenschaft, Religion und die deutungsoffenen Grundfragen der Biologie. Mpi for the History of Science, preprint 388, 1-21, also in philpapers. Range and limits of science are given by the universal validity of physical laws, and by intrinsic limitations, especially in self-referential contexts. In particular, neurobiology should not be expected to provide a full understanding of consciousness and the mind. Science cannot provide, by itself, an unambiguous interpretation of the natural order (...) at the philosophical, cultural and religious level. The diversity of interpretations, however appears as a positive factor of cultural dynamics. Historically, the revival of the philosophy of nature in the middle ages included remarkable biological thoughts such as those of Eriugena and Thierry of Chartres. In this essay, emphasis is placed on basic issues of modern biology – the distinction of man and animal, the evolution of human mental capabilities, the physics of the universe as precondition for biological evolution, and the intricasies of the brain-mind-relation. They are open to agnostic as well as religious interpretations, the individual choice being mainly a matter of wisdom and not just of knowledge. -/-. (shrink)

Nell'alto medioevo vi erano tre possibilità per il filosofo che volesse difendere l'esistenza degli universali: in primo luogo ante rem, seguendo la linea platonico-agostiniana degli universali trascendenti e questa è la via teologica; in secondo luogo la via post rem, cioè la via del concettualismo, conosciuta oggi come astrattismo, per cui gli universali sono il prodotto dell'astrazione della mente e questa è una via logica; la terza via è quella in re e difende gli universali immanenti che esistono negli universali (...) ed è una risposta ontologica. La seconda via fu difesa da Boezio nel secondo commento a Porfirio. La prima teoria è stata generalmente accettata da tutti i filosofi dell'alto medioevo eccetto Abelardo, mentre la terza via, quella degli universali immanenti, che ha come fonti antiche l'Isagoge di Porfirio e le Categoriae di Aristotele, fu difesa principalmente da quattro autori: Giovanni Scoto Eriugena, Anselmo d'Aosta, Odone di Cambrai e Guglielmo di Champeaux. L'A. prende in esame e confronta le soluzioni di Anselmo di Canterbury e Odone di Cambrai. (shrink)

This Handbook contains forty essays by an international team of experts on the antecedents, the content, and the reception of the Dionysian corpus, a body of writings falsely ascribed to Dionysius the Areopagite, a convert of St Paul, but actually written about 500 AD. The first section contains discussions of the genesis of the corpus, its Christian antecedents, and its Neoplatonic influences. In the second section, studies on the Syriac reception, the relation of the Syriac to the original Greek, and (...) the editing of the Greek by John of Scythopolis are followed by contributions on the use of the corpus in such Byzantine authors as Maximus the Confessor, John of Damascus, Theodore the Studite, Niketas Stethatos, Gregory Palamas, and Gemistus Pletho. In the third section attention turns to the Western tradition, represented first by the translators John Scotus Eriugena, John Sarracenus, and Robert Grosseteste and then by such readers as the Victorines, the early Franciscans, Albert the Great, Aquinas, Bonaventure, Dante, the English mystics, Nicholas of Cusa, and Marsilio Ficino. The contributors to the final section survey the effect on Western readers of Lorenzo Valla's proof of the inauthenticity of the corpus and the subsequent exposure of its dependence on Proclus by Koch and Stiglmayr. The authors studied in this section include Erasmus, Luther and his followers, Vladimir Lossky, Hans Urs von Balthasar, and Jacques Derrida, as well as modern thinkers of the Greek Church. Essays on Dionysius as a mystic and a political theologian conclude the volume. (shrink)

When considering the possibility of a vision of God, a paradox seems to appear in John Scot-tus Eriugena’s philosophy. On the one hand, God is said to be invisible, unthinkable, inac-cessible to any creature, be it rational or intellectual, man or angel. On the other hand, a vision of God, a contemplation, is said to be the reward of all nature in paradise, and this very contemplation the condition of all future souls. The solution of this false problem is (...) to be found in the notion of theophany. Its analysis and interpretation are the core of this article. Eriugena finds this ancient greek term, which means literally ‘manifestation of God’, in the corpus of the Pseudo-Dionysus and promptly uses it in a new philosophical way. Four different meanings of theophany may be found in John Scottus’ writing. They are: the manifestation of the first principle, the sensible world, the Christ, and finally human nature deified. This order encompasses Eriugena’s whole philosophical system: everything is a theophany, and the creatures participate in the creation of the creator. A theophany is thus a manifestation of God, as in a manifestation of himself to himself. According to Eriugena, God as principle isn’t yet a being; for God to be, he has to show himself and see himself through humankind. (shrink)

This paper seeks to examine the thought of philosophers about the influence of the environment on humans' physical, mental and moral habits, as well as how these philosophers used this influence to categorise individuals according to their habitat. As such this research begins with Herodotus and Hippocrates, and briefly discusses Plato, Aristotle, and seven medieval philosophers belonging to Jewish, Christian, and Islamic religions (Al-Kindi, Eriugena, Al-Farabi, Ibn Sina, Ibn Tufail, Averroes, and Moses Maimonides). Also, this study investigates Montesquieu from (...) the seventh century, eight modern thinkers from the 19th through the 21st centuries, determinism (Carl Ritter, Ellen Churchill Semple, and Ellsworth Huntington), geography of possibilism (Vidal de Blacche, Lucian Febwer, and Cari Sauer), bioregionalism (Richard Evanoff), and meteorology (Frederik Nebeker). Lastly, this study concludes that all aforementioned 19th philosophers agreed that the environment influences human behaviour and physical condition. -/- . (shrink)

Gregory of Nyssa’s treatise 'De opificio hominis' was one of the only Greek anthropological texts translated into latin during the early Middle Ages, by Dionysius Exiguus between the late 5th and early 6th centuries and by John Scotus Eriugena in the 9th century. Nicholas of Cusa certainly became acquainted with this work indirectly through the extensive citations in Eriugena’s 'Periphyseon' and through their partial reproduction in the 'Clavis physicae' of Honorius Augustodunensis. Our paper will analyse these and other (...) possible ways of reception –both direct and indirect– of Gregory's text by Cusanus, as well as the influence of certain philosophical themes of Nyssen’s anthropology in his thought, such as the conception of the 'imago Dei', of its ‘living’ character and its simplicity, the incomprehensibility of human intellect or mind (noûs) and theories regarding human free will and man as microcosm. (shrink)

The full text of this essay is available in an English translation (also in philpapers) under: Alfred Gierer, Science, religion, and basic biological issues that are open to interpretation. Der Artikel bildet das Schlusskapitel des Buches " Alfred Gierer: Wissenschaftliches Denken, das Rätsel Bewusstsein und pro-religiöse Ideen", Königshausen&Neumann, Würzburg 2019. Reichweite und Grenzen naturwissenschaftlicher Erklärungen ergeben sich zum einen aus der universellen Gültigkeit physikalischer Gesetze, zum anderen aus prinzipiellen, intrinsischen Grenzen der Bestimmbarkeit und Berechenbarkeit, zumal bei selbstbezüglichen Fragestellungen. In diesem (...) Essay geht es um deutungsoffene Grundfragen in Zusammenhang mit der Beziehung von Wissenschaft und Religion: Der Unterscheidung von Tier und Mensch, der Entstehung der mentalen Fähigkeiten der biologischen Spezies „Mensch“, den naturgesetzlichen Voraussetzungen eines „lebensfreundlichen“ physikalischen Universums, und der Reichweite wie den Grenzen einer naturwissenschaftlichen Erklärung von menschlichem Bewusstsein. Naturwissenschaft kann auf der philosophischen, kulturellen und religiösen Ebene die Mehrdeutigkeit der Welt nicht auflösen. Agnostische und religiöse Grundauffassungen werden auf Dauer ko-existieren, und die Wahl ist nicht nur eine Frage des Wissens, sondern besonders auch der Weisheit und der Lebenskunst. (shrink)

The essay is an English version of the German article "Wissenschaftliche Rationalität, menschliches Bewusstsein und pro-religiöse Ideen". It discusses immanent versus transcendent concepts in the context of the art of living, as well as the understanding of human consciousness in the context of religion. Science provides us with a far reaching understanding of natural processes, including biological evolution, but also with deep insights into its own intrinsic limitations. This is consistent with more than one interpretation on the “metatheoretical“, that is (...) on the philosophical and cultural level, including liberal, enlightened forms of religion as well as agnostic views. Choices and preferences are mainly a matter of wisdom and art of living, and not just of knowledge, and this, in my view, supports metaphysical and anthropological optimism as expressed in liberal pro-religious ideas. Within Christian theology, metaphysical optimism and openness are most characteristic for the ideas of “apokatastasis” – “salvation for all” - repeatedly condemned as heretical, but also widely supported from early Christianity to modern times. (shrink)

Diese Schrift enthält eine Reihe von sieben Artikeln, in der es um die Beziehung der Wissenschaften zu aufgeklärten, liberalen Formen religiöser Vorstellungen geht. Im Gegensatz zu verbreiteten Ansichten zumal des vorigen Jahrhunderts führt die moderne Naturwissenschaft zu einer zwar weitgehenden, aber prinzipiell nicht vollständigen Erklärung der Wirklichkeit. Sie kann die Rätselhaftigkeit der Welt für uns Menschen nicht aufheben; die Grundfähigkeiten des menschlichen Denkens sind schließlich nicht nur Gegenstand der Wissenschaft, sondern auch Voraussetzungen jeder wissenschaftlichen Tätigkeit. Auf der „meta-theoretischen“, nämlich der (...) philosophischen, kulturellen und religiösen Ebene bleibt die Welt mehrdeutig; wir dürfen und können wählen. Nach meiner Ansicht sprechen dabei Weisheit und Lebenskunst für eine pro-religiöse Einstellung; verbindlich kann und soll sie aber nicht sein. Die Artikel folgen dieser Gedankenspur. Sie sind voneinander unabhängig entstanden, sollen auch unabhängig lesbar sein und sind dazu als Volltext einbezogen. Etwas an Wiederholungen in der Reihe ist so nicht zu vermeiden, und dafür bitte ich um Nachsicht. Am Beginn steht eine kurze Antwort des Autors zur Frage „Was ist der Mensch?“, welche die Berlin-Brandenburgische Akademie der Wissenschaften etwa achtzig Personen gestellt hat. Es folgt ein Artikel zur biologischen Entstehung der höheren geistigen Fähigkeiten unserer Spezies „Mensch“, insbesondere der kognitionsgestützten Empathie. Zentraler Aspekt ist in den weiteren Überlegungen das menschliche Bewusstsein; es gibt prinzipielle, erkenntnistheoretisch robuste Gründe gegen die Möglichkeit einer vollständigen naturwissenschaftlichen Erklärung. Schon der geniale mittelalterliche Theologe Meister Eckhart hat den Urgrund des menschlichen Bewusstseins als göttlich angesehen. Unter den modernen Naturwissenschaftlern gehe ich exemplarisch auf Wolfgang Pauli ein, der neben Physik und Logik besonders die psychischen Voraussetzungen wissenschaftlicher Entdeckungen betont. Im Bezug auf Religion zeigte er Sympathie für östliche Gedankenwelten, liebte Schopenhauer, der den Buddhismus für westliche Denker wieder entdeckt hatte. Sodann erkläre ich meine Gründe für pro-religiösen „metaphysischen Optimismus“ – das göttliche Heil ist für Alle da - und das nicht nur im Kontext des Christentums. Nach diesem mehr persönlichen Artikel (ohne Zitate!) schließe ich mit einer systematischen Analyse von Aspekten moderner Biologie, die verschiedene, sowohl agnostische wie auch pro-religiöse Deutungen ermöglichen, und argumentiere für Offenheit der Erörterung. -/- The basic issue of this book on “Science, the enigma of consciousness, and pro-religious ideas” is the relation of modern science that encompasses, among its topics, its own intrinsic limitations, to enlightened, liberal versions of religion. The relation allows for more than one logically consistent interpretation on the “metatheoretical“, that is on the philosophical and cultural level. This includes religious as well as agnostic views. Choices and preferences are mainly a matter of wisdom and art of living, and not just of knowledge, and this may lead us towards a pro-religious option. -/- . (shrink)