This is the first volume compiling English translations of Leibniz's journal articles on natural philosophy, presenting a selection of 26 articles, only three of which have appeared before in English translation. It also includes in full Leibniz's public controversies with De Catelan, Papin, and Hartsoeker. The articles include work in optics, on the fracture strength of materials, and on motion in a resisting medium, and Leibniz's pioneering applications of his calculus to these issues by construing them as mini-max and inverse (...) tangent problems. Other topics covered by the articles include: criticisms of the Cartesian estimate of motive force and Leibniz's proposal of a different way of estimating force to replace it; a proposed theory of celestial motions and gravitation, and derivation of the inverse square law; challenge problems concerning the isochronous curve and the catenary; a sample of work on gaming theory; and Leibniz's critique of atomism. (shrink)

With the potential to process the world's agricultural and food waste, provide sustainable fodder for livestock, aquaculture, and pet animals, as well as act as a source of novel biomolecules, the black soldier fly, Hermetia illucens, has been launched into the leading position within the insects as feed industry. Fulfilment of these goals, however, requires mass‐rearing facilities to have a steady supply of neonate larvae, which in‐turn requires an efficient mating process to yield fertile eggs; yet, little is known about (...) adult reproductive behavior, nor what physiological factors lead to its emergence. Moreover, fertile egg production tends to be highly variable in colony. Therefore, this review brings together what is currently known of the organismal biology of H. illucens, compiling information on adult morphology, physiology, biogeography, genomics, and behavioral ecology. As a holistic synthesis, it highlights several directions of interest for research to follow. (shrink)

"This book introduces Gottfried Wilhelm Leibniz's Principle of Optimality and argues that it plays a central role his physics and philosophy, with profound implications for both. Each chapter begins with an introduction to one of Leibniz's ground-breaking studies in natural philosophy, paying special attention to the role of optimal form in those investigations. Each chapter then goes on to explore the philosophical implications of optimal form for Leibniz's broader philosophical system. Individual chapters include discussions of Leibniz's understanding of teleology, the (...) nature of bodies, laws of nature, and free will. The final chapter explores the legacy of Leibniz's physics in light of his work on optimal form"--. (shrink)

This paper offers a non-traditional account of what was really at stake in debates over the legitimacy of teleology and teleological explanations in the later medieval and early modern periods. It is divided into four main sections. The first section highlights two defining features of ancient and early medieval views on teleology, namely, that teleological explanations are on a par (or better) with efficient causal explanations, and that the objective goodness of outcomes may explain their coming about. The second section (...) argues that it was the first thesis – the thesis of explanatory parity –that came under attack by mainstream philosophers in the later medieval and early modern traditions, rather than teleology per se. The third section argues similarly that it was the second thesis – the thesis of explanatory goodness – that was the object of Spinoza’s critique of final causes, rather than teleology itself. Finally, the fourth section argues that Leibniz’s claim to be a champion of traditional teleology rests on his willingness to defend both the theses of explanatory parity and goodness against the very charges that led to their demise. The essay concludes by contrasting the narrative offered here with Don Garrett’s recent account according to which “it is not Leibniz but Spinoza who holds the position on teleology and teleological explanation nearest to that of Aristotle” (312). (shrink)

entry for the Stanford Encyclopedia of Philosophy (SEP) This entry will attempt to provide a broad overview of the central themes of Leibniz’s philosophy of physics, as well as an introduction to some of the principal arguments and argumentative strategies he used to defend his positions. It tentatively includes sections entitled, The Historical Development of Leibniz’s Physics, Leibniz on Matter, Leibniz’s Dynamics, Leibniz on the Laws of Motion, Leibniz on Space and Time. A bibliography arranged by topic is also included. (...) A working draft is available here (comments, as always welcome): draft. (shrink)

This paper aims to offer a sympathetic reading of Berkeley’s often maligned account of human agency. The first section briefly revisits three options concerning the relationship between human and divine agency available to theistically minded philosophers in the medieval and early modern eras. The second argues that, of those three views, only the position of concurrentism is consistent with Berkeley’s texts. The third section explores Berkeley’s reasons for adopting concurrentism by highlighting three motivating considerations drawn from his larger philosophical system. (...) Finally, the fourth section attempts to flesh out Berkeley’s understanding of human activity by looking at how we might understand his claim that “we move our legs ourselves” in light of his commitments to idealism and concurrentism. (shrink)

In this paper I argue that the hoary theological doctrine of divine concurrence poses no deep threat to Leibniz’s views on theodicy and creaturely activity even as those views have been traditionally understood. The first three sections examine respectively Leibniz’s views on creation, conservation and concurrence, with an eye towards showing their sys­tematic compatibility with Leibniz’s theodicy and metaphysics. The fourth section takes up remaining worries arising from the bridging principle that conservation is a continued or continuous creation, and argues (...) that they can be allayed once two readings of the prin­ciple are distinguished. What emerges from the discussion as a whole is, I hope, a clearer picture of Leibniz’s views on the nature of monadic causation, his understanding of the relationship between divine and creaturely activity, and his position with respect to later medieval and early modern debates over secondary causation. (shrink)

Jeffery Aubin ,Marie Chantal ,Dianne Cole ,Julio Chaves ,Cathelyne Duchesne ,Christel Freu ,Steve Johnston ,Brice Jones ,Amaury Levillayer ,Stéphanie Machabée ,Paul-Hubert Poirier ,Philippe Therrien ,Jonathan von Kodar ,Martin Voyer ,Jennifer Wees ,Eric Crégheur.

Leibniz’s mature philosophical understanding of the laws of nature emerges rather suddenly in the late 1670’s to early 1680’s and is signaled by his embrace of three central theses.1 The first, what I’ll call the thesis of Contingency, suggests that the laws of nature are not only contingent, but, in some sense, paradigmatically contingent; they are supposed to provide insight into the very nature of contingency as Leibniz comes to understand it. The second, what I’ll call the thesis of Providence, (...) suggests that the laws of nature provide a basis for a new argument from design by showing how reflection on God’s ends can be positively useful in the practice of natural philosophy. The third, what I’ll call thesis of .. (shrink)

Confronting the threat of a Spinozistic necessitarianism, Leibniz insists that not all possible substances are compossible—that they can't all be instantiated together—and thus that not all possible worlds are compossible—that they can't all be instantiated together. While it is easy to appreciate Leibniz's reasons for embracing this view, it has proven difficult to see how his doctrine of incompossibility might be reconciled with the broader commitments of his larger philosophical system. This essay develops, in four sections, a novel solution to (...) the "puzzle of incompossibility." The first section frames the difficulty more carefully and briefly argues that the two dominant strategies developed by Leibniz's commentators fail to solve it fully insofar as they require simply abandoning one or another of its motivating commitments. The second and third sections show how Leibniz's guiding analogy of a geometrical packing or tiling problem may be applied to solve the puzzle of incompossibility in the context of finite and infinite worlds composed of extended corporeal substances. Finally, the fourth section shows how the strategy of Leibniz's packing analogy might be applied even in the context of a thoroughly idealist metaphysics in which the only true substances are nonextended, mindlike "monads." The essay concludes by drawing some connections between Leibniz's thinking about the puzzle of incompossibility and the development of his views concerning the status of corporeal substances and extended bodies. CiteULike Connotea Del.icio.us Digg Reddit Technorati What's this? (shrink)

This volume explores the intuitive yet puzzling concept of teleology as it has been treated by philosophers from the time of Plato and Aristotle to the present day. Philosophical discussions are enlivened and contextualized by reflections on the implications of teleology in medicine, art, poetry, and music.

The following paper attempts to explore, criticizeand develop Thomas Kuhn's mostmature – and surprisingly neglected – view ofincommensurability. More specifically, itfocuses on (1) undermining an influential picture ofscientific kinds that lies at the heartof Kuhn's understanding of taxonomic incommensurability;(2) sketching an alternativepicture of scientific kinds that takes advantage ofKuhn's partially developed theory ofdisciplinary matrices; and (3) using these two resultsto motivate revisions to Kuhn'stheory of taxonomic incompatibility, as well as, tothe purported bridge betweentaxonomic incompatibility and some of the traditionalproblems associated (...) withincommensurability. (shrink)

This book offers a historical introduction to fundamental questions in the philosophy of religion. It is divided into twenty-five chapters. The first chapter discusses the nature of piety drawing on Plato's Euthyphro. The next three chapters discuss the nature of evil, free will, foreknowledge, and sin in the context of Augustine's On Free Choice of Will. Chapter Five discusses Anslem's "ontological" argument for the existence of God. Chapter Six explores Ibn Sina's account of the nature of the soul and immortality. (...) The next two chapters explore the foundations of religious belief and mysticism in the company of al-Ghazali's The Rescuer from Error. Chapters nine through eleven discuss Aquinas's arguments for the existence of God as well as his account of God's impersonal and personal attributes. The twelfth chapter explores Marguerite Porete's account of mystical ascent as well as the doctrines of heaven and hell. Chapter Thirteen discusses Pascal's pragmatic argument for belief in the existence of God. Chapters Fourteen through Sixteen discuss Spinoza's understanding of God, our relationship to God, and the foundations of morality. Chapters Seventeen through Nineteen explore the argument from design, the existence of God, deism, and the problem of evil. Chapter Twenty investigates Mary Shepherd's defense of belief in miracles, while Chapter Twenty-One explores Mill's views on the utility of religion. Finally, chapters Twenty-Three through Twenty-Five explore the origins of modern morality and the relationship between religion and nihilism in the company of Nietzsche's On the Genealogy of Morality. (shrink)

This essay examines one of the cornerstones of Leibniz's defense of teleology within the order of nature. The first section explores Leibniz's contributions to the study of geometrical optics, and argues that his "Most Determined Path Principle" or "MDPP" allows him to bring to the fore philosophical issues concerning the legitimacy of teleological explanations by addressing two technical objections raised by Cartesians to non-mechanistic derivations of the laws of optics. The second section argues that, by drawing on laws such as (...) the MDPP, Leibniz is able to introduce a thin notion of teleology that gives him the resources to respond to the most pressing charges of his day against teleological explanations within natural philosophy. Finally, the third section argues that contemporary philosophers have been overly hasty in their dismissal of Leibniz's account of natural teleology, and indeed that their own generally thin conceptions of teleology have left them with few well-motivated resources for resisting his elegant position. (shrink)

Śrīgupta, a Buddhist philosopher in the Middle Way tradition, was born in Bengal in present-day India in the seventh century. He is best known for his Introduction to Reality with its accompanying auto-commentary,1 in which he presents the first Middle Way iteration of the influential "neither-one-nor-many argument."2 This antifoundationalist line of reasoning sets out to prove that nothing enjoys ontologically independent being.Gottfried Wilhelm Leibniz was born some one thousand years later, in the city of Leipzig, situated on the outskirts of (...) European learning and thought. He is best known today for having co-invented the infinitesimal calculus, for his... (shrink)

Comments on Sukjae Lee's "Berkeley on the Activity of Spirits," presented at Eastern Division Meeting of the American Philosophical Association, Baltimore, MD, December 2007.

In his rich and engaging essay, Professor Garber asks most centrally, “…what was the relation between Leibniz’s metaphysical project as set out in the so-called ‘Monadologie’ and the more theological project in the Essais de Théodicée?” His answer is, in short, that there isn’t much of a relationship between these two great works. Furthermore, he takes this result to be evidence of Leibniz’s not being a systematic philosopher in the spirit of Descartes or Spinoza. In these brief comments, I revisit (...) Garber’s two central questions in turn and offer some moderating resistance to both of his conclusions. (shrink)

The Dioptrique, often translated as the Optics or, more literally, as the Dioptrics is one of Descartes’ earliest works. Likely begun in the mid to late 1620’s, Descartes refers to it by name in a letter to Mersenne of 25 November 1630 III, 29). Its subject matter partially overlaps with Descartes’ more foundational project The World or Treatise on Light in which he offers a general mechanistic account of the universe including the formation, transmission, and reception of light. Although Galileo’s (...) condemnation by the Church prompted Descartes to abandon, in 1633, his plans for publishing The World, he continued in the ensuing years to vigorously pursue a number of scientific projects, including projects related to his work in optics. He was eventually persuaded to publish three essays highlighting some of his discoveries together with an introductory essay concerning “the method for rightly directing one’s reason and searching for truth in the sciences” . As one of those essays, Descartes’ Dioptrics finally appeared in print together with the Discourse on Method, the Meteorology and the Geometry in the summer of 1637 in a French language edition. It was republished in a Latin edition in 1644. The subject matter of the Dioptrics may be thought of as covering three main topics and is formally divided by Descartes into ten chapters or “discourses”. The first main topic concerns the nature of light and the laws of optics. In the first discourse, Descartes invites his readers to. (shrink)

This essay offers an account of the relationship between extended Leibnizian bodies and unextended Leibnizian monads, an account that shows why Leibniz was right to see intimate, explanatory connections between his studies in physics and his mature metaphysics. The first section sets the stage by introducing a case study from Leibniz's technical work on the strength of extended, rigid beams. The second section draws on that case study to introduce a model for understanding Leibniz's views on the relationship between derivative (...) and primitive forces. The third section draws on Leibniz's understanding of the relationship between derivative and primitive forces in order to shed light, in turn, on his understanding of the relationship between extended, material bodies and unextended, immaterial monads. The fourth section responds to a likely objection by arguing that Leibniz's monads may, in a perfectly reasonable sense, be spatially located. (shrink)

Leibniz speaks, in a variety of contexts, of there being two realms—a "kingdom of power or efficient causes" and "a kingdom of wisdom or final causes." This essay explores an often overlooked application of Leibniz's famous "two realms doctrine." The first part turns to Leibniz's work in optics for the roots of his view that nature can be seen as being governed by two complete sets of equipotent laws, with one set corresponding to the efficient causal order of the world, (...) and the other to its teleological order. The second part offers an account of how this picture of lawful over-determination is to be reconciled with Leibniz's mature metaphysics. The third addresses a line of objection proposed by David Hirschmann to the effect that Leibniz's doctrine undermines his stated commitment to an efficient, broadly mechanical account of the natural world. Finally, the fourth part suggests that Leibniz's thinking about the harmony of final and efficient causes in connection with corporeal nature may help to shed light on his understanding of the teleological unfolding of monads as well. (shrink)

This essay offers an alternative account of Leibniz’s views on substance and fundamental ontology. The proposal is driven by three main ideas. First, that Leibniz’s treatment should be understood against the backdrop of a traditional dispute over the paradigmatic nature substance as well as his own overarching conciliatory ambitions. Second, that Leibniz’s metaphysics is intended to support his conciliatory view that both traditional views of substance are tenable in at least their positive and philosophical respects. Third, that the relationship between (...) immaterial substances, corporeal substances, and ordinary bodies in Leibniz’s metaphysics is best understood as one of “material” constitution. The interpretation as a whole thus suggests that Leibniz needn’t be read as offering either an exclusive defense of corporeal substance realism, nor of immaterial substance idealism, nor as being deeply torn (at a time or over time) between two such views. He may instead be seen as offering a carefully presented, consistent, and sophisticated conciliatory account of substance. (shrink)

Comments on Roger Ariew’s “Descartes and Leibniz as Readers of Suarez," presented at Franscico Suarez, S.J.: Last Medieval or First Early Modern?, London, Ontario, University of Western Ontario, September 2008.

In writing papers, students confront two obstacles. First, they may not know what philosophical writing is, mistaking an extended statement of their opinion for a philosophy paper. Second, some students lack certain key writing skills and so have difficulty organizing and conveying their view on a philosophical issue. In addition to reading good philosophical works, students need practice writing, editing, and revising their work and so rough drafts become a key component in teaching philosophical writing. This paper outlines the traditional (...) procedure for rough drafts, highlights some difficulties with this approach, and then details an alternative approach that is advantageous in several ways. In addition, an example classroom handout is provided that introduces this alternative procedure. (shrink)

In this essay, we explore a fresh avenue into mind-body dualism by considering a seemingly distant question posed by Frege: "Why is it absurd to suppose that Julius Caesar is a number?". The essay falls into three main parts. In the first, through an exploration of Frege’s Julius Caesar problem, we attempt to expose two maxims applicable to the mind-body problem. In the second part, we draw on those maxims in arguing that “full blown dualism” is preferable to more modest, (...) property-theoretic, versions. Finally, in the third part we close by suggesting that full blown dualism need not be spooky, resurrecting a broadly Lockean, rather than Cartesian, metaphysical picture. (shrink)

This essay attempts to provide a sympathetic reading of Hume’s often tangled discussion of memory in the Treatise. It divides into three main sections. The first section isolates three puzzles in Hume’s account of memory. The second section attempts to show how those puzzles arise as a result of Hume’s understandable failure to recognize a necessary connection between memory and causation. Finally, the third section looks at how the reading of Hume’s account of memory offered in the first two sections (...) fits into the larger context of his work by considering the roles he assigns to memory in his famous account of personal identity. (shrink)

In a stimulating recent paper, “Violations of the Principle of Sufficient Reason (in Leibniz and Spinoza),” Michael Della Rocca argues that rationalists face a daunting dilemma: either abandon the Principle of Sufficient Reason or embrace a radical, Parmenidian-style monism. The present paper argues that neither historical nor contemporary rationalists need be afraid of Della Rocca’s dilemma. The second section reconstructs Della Rocca’s argument in five steps. The third section argues that Leibniz’s treatment of relations undermines one of those steps in (...) particular and thus provides him—as well as contemporary rationalists—with a way out. The fourth section argues that a similar way out is available to Spinoza, and that it’s a better way out than either of the two options Della Rocca offers on Spinoza’s behalf. The essay concludes with an historically-minded suggestion for those eager to revitalize the once-again popular notion of grounding. (shrink)

Comments on Andy Egan’s "Second-Order Predication and the Metaphysics of Properties," presented at California State University Long Beach, CA 2003.

Descartes’ work on optics spanned his entire career and represents a fascinating area of inquiry from both the perspectives of the history of science and his systematic natural philosophy. The first of these entries offers a brief account of Descartes' seminal work in optics, the Dioptrique, often translated as the Optics or, more literally, as the Dioptrics. The second entry overview of Descartes’ understanding of light, his derivations of the two central laws of geometrical optics, and a sampling of the (...) optical phenomena he sought to explain. (shrink)

Leibniz studies is a distinctive kind of joy. The seventeenth-century polymath made remarkable impacts in a wide-ranging number of domains and their subdomains. The attempt to study one domain in d...

While the ethics of technology is analyzed across disciplines from science and technology studies, engineering, computer science, critical management studies, and law, less attention is paid to the role that firms and managers play in the design, development, and dissemination of technology across communities and within their firm. Although firms play an important role in the development of technology, and make associated value judgments around its use, it remains open how we should understand the contours of what firms owe society (...) as the rate of technological development accelerates. We focus here on digital technologies: devices that rely on rapidly accelerating digital sensing, storage, and transmission capabilities to intervene in human processes. This symposium focuses on how firms should engage ethical choices in developing and deploying these technologies. In this introduction, we, first, identify themes the symposium articles share and discuss how the set of articles illuminate diverse facets of the intersection of technology and business ethics. Second, we use these themes to explore what business ethics offers to the study of technology and, third, what technology studies offers to the field of business ethics. Each field brings expertise that, together, improves our understanding of the ethical implications of technology. Finally we introduce each of the five papers, suggest future research directions, and interpret their implications for business ethics. (shrink)

Health research increasingly relies on organized collections of health data and biological samples. There are many types of sample and data collections that are used for health research, though these are collected for many purposes, not all of which are health-related. These collections exist under different jurisdictional and regulatory arrangements and include: 1) Population biobanks, cohort studies, and genome databases 2) Clinical and public health data 3) Direct-to-consumer genetic testing 4) Social media 5) Fitness trackers, health apps, and biometric data (...) sensors Population biobanks, cohort studies, and genome databases Clinical and public health data Direct-to-consumer genetic testing Social media Fitness trackers, health apps, and biometric data sensors Ethical, legal, and social challenges of such collections are well recognized, but there has been limited attention to the broader societal implications of the existence of these collections. Although health research conducted using these collections is broadly recognized as beneficent, secondary uses of these data and samples may be controversial. We examine both documented and hypothetical scenarios of secondary uses of health data and samples. In particular, we focus on the use of health data for purposes of: Forensic investigations Civil lawsuits Identification of victims of mass casualty events Denial of entry for border security and immigration Making health resource rationing decisions Facilitating human rights abuses in autocratic regimes Forensic investigations Civil lawsuits Identification of victims of mass casualty events Denial of entry for border security and immigration Making health resource rationing decisions Facilitating human rights abuses in autocratic regimes Current safeguards relating to the use of health data and samples include research ethics oversight and privacy laws. These safeguards have a strong focus on informed consent and anonymization, which are aimed at the protection of the individual research subject. They are not intended to address broader societal implications of health data and sample collections. As such, existing arrangements are insufficient to protect against subversion of health databases for non-sanctioned secondary uses, or to provide guidance for reasonable but controversial secondary uses. We are concerned that existing debate in the scholarly literature and beyond has not sufficiently recognized the secondary data uses we outline in this paper. Our main purpose, therefore, is to raise awareness of the potential for unforeseen and unintended consequences, in particular negative consequences, of the increased availability and development of health data collections for research, by providing a comprehensive review of documented and hypothetical non-health research uses of such data. (shrink)

Sandberg et al. show that the Perceptual Awareness Scale scale is sensitive compared to confidence ratings and wagering in detecting accurate perception. They go on to argue that the PAS scale is hence a sensitive measure of conscious perception compared to confidence ratings, a claim disputed here. The fact that some visual content is conscious does not entail that the visual content relevant to making a discrimination is conscious. For example, if one saw a square but was only aware of (...) seeing a flash of something, then one has not consciously seen a square. When PAS and confidence ratings come in conflict, we suggest that it is confidence ratings that more reliably indicate the conscious status of contents allowing discrimination. (shrink)

Machiavellianism has tremendous influence on modern business communities, especially in the U.S.A. and European countries. Businessmen today, it is said, prefer to follow the directions of pragmatism and expediency rather than the dictates of individual conscience.In principles and practices, Indian management by and large follows the Western line. Therefore, the question arises whether Machiavellian influences are perceptibly high on Indian managers. This question is more relevant in the light of a few surveys conducted on the ethical attitudes of Indian managers. (...) These identified a clear contrast between their expressed behaviour and wanted attitudes. The present study on the attitudes of managers from the major cities of India concludes that Niccolo Machiavelli inspires and influences Indian managers, but has not become the final determinant in their decision-making. (shrink)

It is well known that Sidgwick finished his examination of “the methods of ethics” in some difficulty. Just what that difficulty was and how he came to be in it, we shall see in due course. This paper is written in the conviction that what he was doing is worth looking at again in the context of contemporary discussion.