My dissertation lays out some of the chief philosophical precursors to Jonathan Israel's Radical Enlightenment. It investigates the principal question of Will Durant's The Age of Voltaire: "How did it come about that a major part of the educated classes in Europe and America has lost faith in the theology that for fifteen centuries gave supernatural sanctions and supports to the precarious and uncongenial moral code upon which Western civilization has been based?" The aim of this project is both broad and specific: the first is to provide a general history of the philosophical precursors to the Radical Enlightenment up until the early modern period, and the second is to highlight one of these precursors in detail, which I do in the large Spinoza part. With the assistance of a great deal of scholarship in philosophy of religion, history of philosophy, theological analysis, biblical criticism, and historiography, my dissertation contends that the major philosophical precursors against orthodox faith in revelation and for the Radical Enlightenment have been derived primarily from several forces. I present some of the general arguments of some of the pre-Socratics and Greek philosophers, especially Socrates and Plato, emphasizing their rationalist and non-theological thinking. Then I point out how some of this Greek philosophical literature led to new philosophical and theological elements in some of the teachings of the Church Fathers, some of the medievals, and some of the scholastics, up to the early modern period. The core of my argument, however, begins to pick up steam at the Renaissance. With the Renaissance, the Scientific Revolution, and the early Enlightenment New Philosophy, everything changes. Renaissance textual criticism of ancient texts leads to the beginnings of some genuine biblical criticism. The explosion of naturalist-leaning explanations of nature via Copernicus, Galileo, Descartes and many others in the Scientific Revolution leads many to wonder if God is needed. The rejection of Aristotelian and Scholastic metaphysics by the New Philosophers, most notably, Descartes, undermine what for many provided the philosophical underpinnings for the Church and theology. And then "the most unkindest cut of all," the revolutionary historical and textual criticism of the Bible (by many early Enlightenment philosophers, especially Spinoza) which utterly undermines and refutes Judaism and Christianity.

Esta tese versa sobre as diferentes funções para as quais a História Natural foi mobilizada em Portugal e na América Portuguesa entre 1750 e 1822. Defende-se aqui que esse domínio do saber se constituiu entre dois paradigmas ilustrados: o da Teologia Natural e o da ideia de utilidade da natureza para uso humano, sendo este segundo paradigma predominante a partir novos Estatutos da Universidade de Coimbra (1772). Para tanto, analisamos discursos de homens de ciência que fizeram parte do quadro de sócios da Academia Real das Ciências de Lisboa (1779). Em um primeiro momento, a questão é debatida por meio da análise dos novos Estatutos. Examinamos as concepções de História Natural na Ilustração e a opção dos legisladores de enfatizar um ensino voltado para a utilidade. Em seguida, atentamos para a maneira como a História Natural foi mobilizada pelo padre oratoriano Teodoro de Almeida e pelos frades franciscanos José Mayne e Manuel do Cenáculo com o intuito oferecer uma resposta pública às ideias radicais da Ilustração. Além disso, discutimos a maneira como Cenáculo apresentou uma reflexão sobre os usos que os homens poderiam tirar da natureza. Na sequência, esmiuçamos a importância de Domingos Vandelli no panorama da História Natural da segunda metade do século XVIII. Destacamos especialmente a maneira como mobilizou a Academia das Ciências para o seu projeto de inventariação \"física\" e \"econômica\" da natureza de Portugal e suas colônias, incorporando princípios da economia política. Por fim, abordamos as concepções de História Natural e o papel atribuído à providência divina no funcionamento da natureza por parte de dois naturalistas luso-brasileiros com claros vínculos aos projetos políticos do Estado português de finais do século XVIII e início do XIX: Frei José Mariano da Conceição Veloso e José Bonifácio de Andrada e Silva. / This dissertation discusses the different roles of the concept of Natural History in Portugal and Portuguese America among 1750 and 1822. We propose here that this field of knowledge has been built up from two enlightened paradigms: Natural Theology and the idea of nature usefulness for human apropriation. This second paradigm prevails as from the publication of the Statutes of the University of Coimbra (1772). Therefore, we analyze the texts of men of science who integrated the board of members of the Royal Academy of Sciences of Lisbon (1779). In a first moment, this issue is debated through the analysis of the new Statutes. We examined the conceptions of Natural History in Enlightenment and the option to emphasize an education oriented by the idea of utility. Then, we attend to the manner how Oratorian priest Teodoro de Almeida and Franciscan friars José Mayne and Manuel do Cenáculo resorted to Natural History concepts, providing a public answer to the radical ideas of Enlightenment. Also, we discuss the way Cenáculo presented a reflection about the uses men could make from nature. After that, we debate the importance of Domingos Vandelli in the context of the Natural History studies in the second half of the XVIII century. We emphasize especially the way he mobilized The Royal Academy of Sciences around his project of creating an inventory of \"physics\" and \"economics\" of nature in Portugal and its colonies, incorporating principles of Political Economy. Lastly, we debated the conceptions of Natural History and the role attributed to divine providence in the working of nature by two Luso-Brazilian naturalists clearly identified to the Portuguese State\'s political projects of the end of the 18th and the beginning of the 19th centuries: Friar José Mariano da Conceição Veloso and José Bonifácio de Andrada e Silva.

Esta tese versa sobre as diferentes funções para as quais a História Natural foi mobilizada em Portugal e na América Portuguesa entre 1750 e 1822. Defende-se aqui que esse domínio do saber se constituiu entre dois paradigmas ilustrados: o da Teologia Natural e o da ideia de utilidade da natureza para uso humano, sendo este segundo paradigma predominante a partir novos Estatutos da Universidade de Coimbra (1772). Para tanto, analisamos discursos de homens de ciência que fizeram parte do quadro de sócios da Academia Real das Ciências de Lisboa (1779). Em um primeiro momento, a questão é debatida por meio da análise dos novos Estatutos. Examinamos as concepções de História Natural na Ilustração e a opção dos legisladores de enfatizar um ensino voltado para a utilidade. Em seguida, atentamos para a maneira como a História Natural foi mobilizada pelo padre oratoriano Teodoro de Almeida e pelos frades franciscanos José Mayne e Manuel do Cenáculo com o intuito oferecer uma resposta pública às ideias radicais da Ilustração. Além disso, discutimos a maneira como Cenáculo apresentou uma reflexão sobre os usos que os homens poderiam tirar da natureza. Na sequência, esmiuçamos a importância de Domingos Vandelli no panorama da História Natural da segunda metade do século XVIII. Destacamos especialmente a maneira como mobilizou a Academia das Ciências para o seu projeto de inventariação \"física\" e \"econômica\" da natureza de Portugal e suas colônias, incorporando princípios da economia política. Por fim, abordamos as concepções de História Natural e o papel atribuído à providência divina no funcionamento da natureza por parte de dois naturalistas luso-brasileiros com claros vínculos aos projetos políticos do Estado português de finais do século XVIII e início do XIX: Frei José Mariano da Conceição Veloso e José Bonifácio de Andrada e Silva. / This dissertation discusses the different roles of the concept of Natural History in Portugal and Portuguese America among 1750 and 1822. We propose here that this field of knowledge has been built up from two enlightened paradigms: Natural Theology and the idea of nature usefulness for human apropriation. This second paradigm prevails as from the publication of the Statutes of the University of Coimbra (1772). Therefore, we analyze the texts of men of science who integrated the board of members of the Royal Academy of Sciences of Lisbon (1779). In a first moment, this issue is debated through the analysis of the new Statutes. We examined the conceptions of Natural History in Enlightenment and the option to emphasize an education oriented by the idea of utility. Then, we attend to the manner how Oratorian priest Teodoro de Almeida and Franciscan friars José Mayne and Manuel do Cenáculo resorted to Natural History concepts, providing a public answer to the radical ideas of Enlightenment. Also, we discuss the way Cenáculo presented a reflection about the uses men could make from nature. After that, we debate the importance of Domingos Vandelli in the context of the Natural History studies in the second half of the XVIII century. We emphasize especially the way he mobilized The Royal Academy of Sciences around his project of creating an inventory of \"physics\" and \"economics\" of nature in Portugal and its colonies, incorporating principles of Political Economy. Lastly, we debated the conceptions of Natural History and the role attributed to divine providence in the working of nature by two Luso-Brazilian naturalists clearly identified to the Portuguese State\'s political projects of the end of the 18th and the beginning of the 19th centuries: Friar José Mariano da Conceição Veloso and José Bonifácio de Andrada e Silva.

L'obligation de célibat imposée aux ecclésiastiques catholiques fait l'objet de discussions depuis le début de l'église chrétienne, mais au cours du XVIIIe siècle, elle est de plus en plus considéré d'un point de vue politique plutôt que théologique. Le but de cette thèse est de reconstruire la naissance, le développement et la diffusion en Europe de la nouvelle perspective - laïque et séculière - d'envisager l'interdiction au clergé de se marier, née de la «crise de la conscience européenne" et sous l'impulsion des Lumières radicales. Grâce à l'analyse et l'étude de la littérature philosophique et politique européenne, cette thèse reconstruit le débat sur le célibat ecclésiastique dès la fin du XVIIe siècle et jusqu'à la Révolution française, lorsque la laïcisation du mariage permit aux ecclésiastiques, hommes et femmes, de se marier. Cette approche a permis de rendre compte de la complexité d'une question qui sous-tend le problème des rapports entre l'état et l'église, et de l'articulation des différentes positions critiques et orientations idéologiques : de la critique des Lumières radicales à la critique modérée, de l'approche d'observateurs ecclésiastiques intérieurs - clercs et experts en droit canon - qui proposent des prudentes réformes du célibat, à la fermeture complète des conservateurs. Les accusations portées par les révolutionnaires à la chasteté et au célibat, la question de «mariage des prêtres» et la plupart des critiques qui recouvrent encore le célibat ecclésiastique ont leurs racines dans le débat du XVIIIe siècle et dans l'émancipation du regard critique avec lequel les Lumières radicales ont prirent à considérer l'église et ses règles. / Mandatory clerical celibacy for all clergy within catholic countries has been discussed since the beginning of the Christian church. During the eighteenth century, it was increasingly taken into consideration from a political rather than strictly theological point of view. The purpose of this thesis is to reconstruct the creation, development and dissemination in Europe of a new way - secular and lay – of considering the obligation of the clergy to be unmarried that arose from the "crisis of the European conscience" and developed thanks to radical Enlightenment.Through the analysis and study of philosophical and political literature, this thesis reconstructs the debate on clerical celibacy which arose within the European Republic of Letters from the late seventeenth century up until the French Revolution, when the secularization of marriage allowed secular and regular clergy, women and men to get married. This approach has made it possible to account for the complexity of a debate that underlies the problem of the relationship between church and state and the articulation of the different ideological positions: from radical to moderate criticism; from the approach of observers inside the church – clerics or experts in canon law - who proposed cautious reforms to the complete refusal of the conservatives.The accusations levelled against chastity and celibacy by revolutionaries, the issue concerning "married priests" and many criticisms that still invest ecclesiastical celibacy have their roots in the eighteenth-century debate and the secular emancipation of the critical perspective from which radical Enlightenment started to consider the church and its rules.