This chapter contains section titled: Kepler's New Astronomy Kepler's New Science of Vision Galileo and the Telescope Galileo and the Creation of Mathematical Physics Mersenne and the New Science.

Descartes is notorious for holding a strong anti-vacuist position. On his view, according to the standard reading, empty space not only does not exist in nature, but it is logically impossible. The very notion of a void or vacuum is an incoherent one. Recently Eric Palmer has proposed a revisionist reading of Descartes on empty space, arguing that he is more sanguine about its possibility. Palmer makes use of Descartes’ early correspondence with Marin Mersenne, including his commentary on Galileo’s (...) Two New Sciences. I argue that Palmer’s reading is mistaken, and that it relies on an understandable but faulty inference—i.e., that if Descartes considers the implications of an opposing view, he must find it at least coherent. Descartes, as I show from his correspondence and other texts, uses a variety of persuasive strategies, and levels charges of different logical strength, against positions which he takes to be incoherent. Thus we cannot infer from the fact that Descartes argues, e.g., that something is a superfluous theoretical entity, that he admits that entity’s coherence. He often chooses to argue a weaker thesis against an opponent so that he can use an argument to which the opponent is more likely to agree. (shrink)

This paper brings new work to bear on the perennial question about Hobbes's atheism to show that as a debate about scepticism it is falsely framed. Hobbes, like fellow members of the Mersenne circle, Descartes and Gassendi, was no sceptic, but rather concerned to rescue physics and metaphysics from radical scepticism by exploring corporealism. In his early letter of November 1640, Hobbes had issued a provocative challenge to Descartes to abandon metaphysical dualism and subscribe to a ?corporeal God?; a (...) provocation to which the Frenchman angrily responded, but was perhaps importantly influenced. Hobbes's minimal realism was consonant with atheism, to which Descartes felt he was being forced. Moreover, Hobbes was unrelenting in his battle against Cartesian dualism, for which he saw Robert Boyle's experimental science as a surrogate. (shrink)

This book tells the story of modern ethics, namely the story of a discourse that, after the Renaissance, went through a methodological revolution giving birth to Grotius’s and Pufendorf’s new science of natural law, leaving room for two centuries of explorations of the possible developments and implications of this new paradigm, up to the crisis of the Eighties of the eighteenth century, a crisis that carried a kind of mitosis, the act of birth of both basic paradigms of the two (...) following centuries: Kantian ethics and utilitarianism. The new science of natural law carried a fresh start for ethics, resulting from a mixture of the Old and the New. It was, as suggested by Schneewind, an attempt at rescuing the content of Scholastic and Stoic doctrines on a new methodological basis. The former was the claim of existence of objective and universal moral laws; the latter was the self-aware attempt at justifying a minimal kernel of such laws facing skeptical doubt. What Bentham and Kant did was precisely carrying this strategy further on, even if restructuring it each of them around one out of two alternative basic claims. The nineteenth- and twentieth-century critics of the Enlightenment attacked both not on their alleged failure in carrying out their own projects, but precisely on having adopted Grotius’s and Pufendorf’s project. What counter-enlightenment has been unable to spell out is which alternative project could be carried out facing the modern condition of pluralism, while on the contrary, if we takes a closer look at developments in twentieth-century ethics or at on-going discussions on practical issues, we might feel inclined to believe that Grotius’s and Pufendorf’s project is as up-to-date as ever. -/- Table of Contents -/- Preface I. Fathers of the Reformation and Schoolmen 1.1. Luther: passive justice and the good deeds; 1.2. Calvin: voluntarism and predestination; 1.3. Baroque Scholasticism; 1.4. Casuistry and Institutiones morales -/- II Neo-Platonists, neo-Stoics, neo-Sceptics 2.1. Aristotelian, neo-Platonic, neo-Epicurean and neo-Cynic Humanists; 2.2. Oeconomica and the art of living; 2.3. Neo-Stoics; 2.4. Neo-Sceptics; 2.5. Moralistic literature -/- III Neo-Augustinians 3.l. The Jansenists on natura lapsa, sufficient grace, pure love; 3.2. Nicole on the impossibility of self-knowledge; 3.3. Nicole on self-love and charity; 3.4. Nicole against civic virtue, for Christian civility; 3.5. Malebranche on general laws and necessary evil; 3.6. Malebranche on Neo-Augustinianism and Platonism. -/- IV Grotius, Pufendorf and the new moral science 4.1. Grotius against Aristotle and the sceptics; 4.2. Mersenne and Gassendi; 4.3. Descartes on ethics as the last branch of philosophy’s tree; 4.4. Hobbes on scepticism and the new moral science; 4.5. Spinoza on the new moral science as a descriptive science;4.6. Locke on voluntarism and probabilism; 4.7. Pufendorf on natural law as an exact science; 4.8. Pufendorf on physical and moral entities; 10. Pufendorf on self-preservation -/- V The empiricist version of the new moral science: from Cumberland to Paley 5.1. Cumberland against Hobbesian voluntarism; 5.2. Cumberland and theological consequentialism; 5.3. Cumberland on universal benevolence and self-love; 5.4. Shaftesbury on the moral sense; 5.5. Hutcheson on natural law and moral faculties; 5.6. Gay, Brown, Paley and theological consequentialism. -/- VI The rationalist version of the new moral science: from Cudworth to Price 6.1. The Cambridge Platonists; 6.2. Shaftesbury on the moral sense; 6.3. Butler and a third way between voluntarism and scepticism; 6.4. Price and the rational character of moral truths; -/- VII Leibniz’s compromise between the new moral science and Aristotelianism 1.Leibniz against voluntarism; 2.Leibniz against the division between the physical and the moral good; 3.Leibniz on la place d’autrui and theological consequentialism; 4.Thomasius, Wolff, Crusius -/- VIII French eighteenth-century philosophers without the new moral science 8.1. The genealogy of our ideas of virtue and vice; 8.2. Maupertuis and moral arithmetic 8.3. The philosophes and the harmony of interests; 8.4. Rousseau on corruption, self-love, and virtue; 8.5. Sade on the merits of vice -/- IX Experimental moral science: Hume and Adam Smith 9.1. Mandeville’s paradox; 9.2. Hutcheson on the law of nature and moral faculties; 9.3. Hume on experimental moral philosophy and the intermediate principles; 9.4. Hume’s Law; 9.5. Hume on the fellow-feeling; 9.6. Hume on natural and artificial virtues and disinterested pleasure for utility; 9.7. Adam Smith’s anti-realist metaethics; 9.8. Adam Smith on self-deception and the paradox of happiness; 9.9. Adam Smith on sympathy and the impartial spectator; 9.10. Adam Smith on the twofold criterion for moral judgement and its paradox; 9.11. Reid on the refutation of scepticism and the self-evidence of duty -/- X Kantian ethics 10.1. Kantian metaethics: moral epistemology; 10.2. Kantian metaethics: moral ontology; 10.3. Kantian metaethics: moral psychology; 10.4. Kantian normative ethics; 10.5. Kant on the impracticability of applied ethics; 10.6. Kantian moral anthropology; 10.7. Civilisation and moralisation; 10.8. Theology on a moral basis and the origins of evil; 10.9. Fichte and the transformation of theoretical philosophy into practical philosophy XI Bentham and utilitarianism 11.1. Bentham’s linguistic theory; 11.2. Bentham’s moral ontology, psychology, and theory of action; 11.3. The principle of greatest happiness; 11.4. The critique of religious ethics; 11.5. The new morality; 11.6. Interest and duty; 11.7. Virtues; 11.8. Private ethics and legislation -/- XII Followers of the Enlightenment: liberal Judaism and Liberal Theology 12.1. Mendelssohn; 12.2. Salomon Maimon; 12.3. Haskalā and liberal Judaism; 12.4. Liberal Theology. -/- XIII Counter-Enlighteners 13.1.Romanticism and the fulfilment of individuality as the Summum Bonum; 13.2. Hegel on history as the making of liberty; 13.3. Hegel on the unhappy consciousness and the beautiful soul; 13.4. Hegel on Morality and Sittlichkeit; 13.5. Marx on ideology, alienation, and praxis; 13.6. Schopenhauer on compassion; 13.7. Kierkegaard on faith beyond ethics. -/- XIV Followers of the Enlightenment: intuitionists and utilitarian 14.1 Whewell‘s criticism of utilitarianism; 14.2 Whewell on morality and the philosophy of morality; 14.3 Whewell on the Supreme Norm; 14.4 Whewell on the conflict between duties; 14.5 Mill and the proof of the principle of utility; 14.6 Mill’s eudemonistic utilitarianism; 14.7 Mill on rules -/- XV Followers of the Enlightenment: neo-Kantians and positivists 15.1. French spiritualism; 15.2. Neo-Kantians: the Marburg school; 15.3. Neo-Kantians: the Marburg school; 15.4. Comte’s positivism and the invention of altruism; 15.5. Social Darwinism; 15.6. Wundt and an ethic of humankind -/- XVI Post-enlighteners: Sidgwick 16.1. Criticism of intuitionism; 16.2. On ethical egoism; 16.3. Criticism of utilitarianism -/- XVII Post-enlighteners: Durkheim 17.1. Sociology as physics of customs; 17.2. Morality as physics of customs and as practical science; 17.3. On Kantian ethics and utilitarianism; 17.4. The variability of moralities;17.5. Social solidarity as end and justification of morality; 17.6. Secular morality as “sociodicy”; XVIII Post-enlighteners: Nietzsche 18.1. On the Dionysian; 18.2. On the deconstruction of the world of values 18.3 On the twofold genealogy of moralities; 18.4. On ascetics and nihilism; 18.5. Normative ethics of self-fulfilment -/- Bibliography / Index of names / Index of concepts -/- . (shrink)

RENÉ DESCARTES: UMA BIOGRAFIA -/- RENÉ DESCARTES: A BIOGRAPHY -/- Emanuel Isaque Cordeiro da Silva - CAP-UFPE, IFPE-BJ e UFRPE. E-mails: [email protected] e [email protected]. WhatsApp: (82)98143-8399. -/- -/- Nascido em 1596 em Haia, nas fronteiras de Touraine e Poitou, em uma família nobre, René Descartes vem ao mundo ao mesmo ano em que Johannes Kepler (1671-1630), em seu primeiro trabalho publicado (Mysterium cosmographicum), prova a superioridade da astronomia moderna (a de Nicolau Copérnico (1473-1543)) da astronomia antiga (a de Ptolomeu (90-168 (...) d.C.)). Ao mesmo tempo, Galileu Galilei (1564-1642), que detém a cadeira de matemática da Universidade de Pádua, funda o método experimental. As descobertas de Galileu tiveram forte impacto sobre o Colégio Real de La Fleche, realizado pelos jesuítas e onde Descartes recebeu, a partir de 1606, uma forte educação. Ele menciona, no Discurso do Método, seu “desejo extremo” em aprender, seguido, no final de seus estudos, de uma grande decepção: decepção com a filosofia ensinada, cujas controvérsias perpétuas revelam um caráter questionável, e que não pode fornecer um alicerce, em seu estado atual, para outras ciências. Também é proferido um desapontamento, mas esse desapontamento é inverso e diz respeito às matemática, capaz de fornecer esse fundamento que a filosofia não confere, mediante sua certeza e evidências, mas sobre o qual ainda não construímos nada. -/- -/- Numa Europa marcada pelo choque do tradicionalismo católico e do mercantilismo protestante, o lento declínio do poder espanhol e a luta dos Países Baixos pela sua independência, Descartes escolheu, primeiramente, após a graduação, a carreira militar. Engajado no exército do Príncipe Maurício de Nassau, ele é retirado da ociosidade da vida da guarnição pelo encontro, em 1618, de um jovem cientista holandês, Isaac Beeckman (1588-1637), que se tornou seu amigo íntimo por algum tempo. Conhecedor de todas as pesquisas científicas do momento e partidário da nova concepção “mecanicista” da natureza, Beeckman compartilhou com Descartes um entusiasmo que foi acompanhado, segundamente, da ambição de realizar a ciência universal por si mesma, mediante um método único: na noite de 10 de novembro de 1619, ele concebe em três “sonhos”, “os alicerces de uma ciência admirável”. -/- Nos anos seguintes a essa iluminação decisiva, Descartes viajou por toda a Europa, estimando, como Michel de Montaigne (1533-1592), que a demonstração de boas maneiras e costumes diferentes podem gerar muitos preconceitos. Toda sua vida, além disso, esteve vagando, isto é, foi marcada por múltiplas mudanças de residências, e a recusa de estabelecer um vínculo muito de perto com alguém. Foi na Holanda que ele, finalmente, buscará a tranquilidade que não encontrara na França ainda abalada pelas guerras religiosas, antes de ser assim pelas convulsões da Fronda. Todavia, mesmo na Holanda, ele não pôde evitar os ataques de calvinistas e polemicas teológicas que o repugnaram, como evidenciado em suas discussões com a Universidade de Utrecht entre 1643 à 1645 e a Universidade de Leiden em 1647. -/- -/- Além de sua amizade com Beeckman, outro encontro teve uma influência indubitavelmente decisiva sobre o destino de Descartes: o encontro com o cardeal de Bérulle. Fundador da congregação do Oratório (ao qual pertencem Nicolas Malebranche (1638-1715) e Jean-Baptiste Massillon (1663-1742)), o cardeal de Bérulle enxerga na nova física mecanicista, um meio de lutar contra o naturalismo resultante do Renascimento e seu paganismo latente: em uma longa entrevista com Descartes, no outono de 1647, ele fez dessa última uma obrigação de consciência para se dedicar, nesse sentido, à filosofia. -/- Em 1628, Descartes começa a escrever as Regras para a direção do espírito, um tratado inacabado e que não foi publicado durante a vida do autor. Em 1631, desenvolvera a geometria analítica que combina curvas geométricas com equações algébricas. Em 1633 escreveu O Tratado do Homem e preparava-se para publicar O Tratado do Mundo quando a notícia da condenação de Galileu Galilei pelo Santo Ofício (a Inquisição) o deixou receoso e decide, por prudência, não publicar o seu Tratado no qual a tese do movimento da Terra ao redor do Sol é apoiada. Alguns anos depois, foi divulgado em público cultivada de algumas de suas descobertas científicas: além da geometria, a dioptria (a teoria da refração da luz) e meteoros (teoria dos fenômenos atmosféricos luminosos). Esses três tratados aparecem no apêndice do Discurso do Método, e como “ensaios” desse método, em 1637. No século XIX, Victor Cousin (1792-1867) publicou pela primeira vez o Discurso sozinho, sem os ensaios. -/- Então vem a principal obra de Descartes no ramo da metafísica: as seis Meditações, aumentadas pelas objeções dos mais famosos filósofos da época (incluindo Thomas Hobbes (1588-1679), Antoine Arnauld (1612-1694) e Pierre Gassendi (1592-1655)), e as respostas a essas objeções, apareceram em 1641. Ansioso para expor sua filosofia para que pudesse ser ensinada, ele também a caracteriza em forma de manual com os Princípios da Filosofia de 1644. -/- Além dos trabalhos publicados, foi por meio das cartas trocadas com personalidades do mundo erudito que Descartes encontrou a oportunidade de esclarecer vários pontos de sua filosofia. Seus principais correspondentes foram o Prade Marin Mersenne (1588-1648), o Padre Denis Mesland (1615-1672), Pierre Chanut (1601-1662), Claude Clerselier (1614-1684), Christiaan Huygens (1629-1695) e Henry More (1614-1687). A partir de 1643, Descartes sustentou, com a Princesa Isabel da Boêmia (1596-1662), uma correspondência dedicada essencialmente a questões morais, que lhe permitiu a formulação de suas ideias nesse campo: esse esforço conduziu, em 1649, ao tratado das Paixões da alma. -/- Nesse mesmo ano, 1649, a Rainha Cristina da Suécia (1626-1689) o convida para ir a Estocolmo, que ele aceitou após muita hesitação. Recebido com todas as honras, mas forçado a um modo de vida bastantemente distinto daquele que era acostumado, e submetido a um clima do qual não se adequou, ele sucumbiu a pneumonia em fevereiro de 1650. -/- Descartes deixou-nos uma espécie de autobiografia intelectual na primeira parte do Discurso do Método: em seus anos de treinamento, seus entusiasmos e suas decepções. O discurso é, também, o primeiro livro para quem busca compreender o projeto filosófico cartesiano desde sua gênese até sua realização. Existem expostos, o método claro (na segunda parte), mas também a moral (terceira parte), a metafísica (quarta parte) e finalmente a física (quinta e sexta partes). (shrink)

The philosopher René Descartes wrote the Compendium musicæ in 1618. Even though he was not known for his music production, he maintained a long correspondence around the subject in dialogue with Marin Mersenne, Constantjin Huygens, Isaac Beeckman and Joan-Albert Ban. However, his musical propositions appear as a marginal subject in his intellectual journey. To understand whether the musical theme relates to the development of his ideas, first, the organization of his correspondence about music and the citations to it in (...) his works was necessary, either in smaller texts or in the works published by the author. We analyzed the hypotheses about the forgetfulness of music in studies about the development of Descartes´ ideas. With these materials, we analyzed and historically contextualized the trajectory of the author's musical conceptions with the development of his main themes. Thus, it is possible to verify Descartes' musical dialogues with his own work and with his historical context. (shrink)

Widespread amongst scholars is the legend according to which Locke shows a strong aversion to abstract ideas, similar to that of Berkley in the Treatise. This legend is endorsed by influential commentators on Locke. He does not even propose the reduction of ideas to mental pictures (a reduction which in Berkeley and Hume will form the base of the negation of the existence of abstract ideas in the mind). Locke is not in the least afraid of abstract ideas; his constant (...) concern, which is evident in his treatment of the complex question of the relation between real and nominal essence, is to refute the position of the Scholastics, according to which a universal concept in the mind (post rem) reflects the universal present in all things as substantial form (the universal in re), without assuming positions which are purely conventionalist and nominalist with regard to knowledge, such as those of Mersenne, Gassendi, Hobbes and sceptical and anti-Cartesian free-thinkers. To show this, I offer an analysis of the relation Locke makes between real and nominal essence, with regard to the relations which link term to idea and idea to things. The nature of the relation between signifier and signified is variable, though, in the relation between ideas and things with respect to the various kinds of complex ideas which the human mind may frame. The greatest difference is to be found between complex ideas of mixed mode and complex ideas of substance. (shrink)

Kevin Harrelson's book commences with the following words: This book provides a philosophical analysis of the several debates concerning the "ontological argument" from the middle of the seventeenth to the beginning of the nineteenth century. My aim in writing it was twofold. First, I wished to provide a detailed and comprehensive account of the history of these debates, which I perceived to be lacking in the scholarly literature. Second, I wanted also to pursue a more philosophically interesting question concerning the (...) apparent unassailability of ontological arguments. In pursuit of this latter problem, the driving question that my account addresses is "why has this argument, or kind of argument, been such a constant in otherwise diverse philosophical contexts and periods?" I think that there is no doubt that Harrelson succeeds in the first of these aims. He has, indeed, produced a detailed scholarly account of the history of debates about ontological arguments from the middle of the seventeenth century to the beginning of the nineteenth. His history is engaging and interesting, covering a wide range of authors with diverse philosophical orientations: Descartes, Arnauld, Caterus, Gassendi, Hobbes, Mersenne, More, Geulincx, Cudworth, Locke, Clarke, Malebranche, Huet, Spinoza, Leibniz, Wolff, Baumgarten, Eberhard, Crusius, Kant, Mendelssohn, and Hegel, among others. It seems to me that anyone who works on the treatment of. (shrink)

How must we and the world be constituted if science is possible? René Descartes had some ideas: For example, he wrote in 1639 to Marin Mersenne, “The imagination, which is the part of the mind that most helps mathematics, is more of a hindrance than a help in metaphysical speculation.” In another missive he suggested that, “besides [local] memory, which depends on the body, I believe there is also another one, entirely intellectual, which depends on the soul alone” (pp. (...) 59, 52). Peter Schouls marshals brief passages such as these alongside discussions of Descartes’ major works to sketch a partial portrait of the human being and the universe. Schouls touches on both metaphysics and cognition, asking how things must be arranged to allow Descartes’ famous method to be mobilized. His conclusions run as follows. First, what should come as no surprise, Descartes “insists on a thoroughgoing dualism that allows him to characterize human beings as essentially free and to characterize nature as causally determined.” (44) Second, Schouls develops from Descartes’ cues a theory of cognition that allows for the pursuit of science by the exploitation of that free human creativity. ). Third, Schouls brings the previous points into full development with a speculative discussion of intellectual argument and scientific method. (shrink)