Conwy Lloyd Morgan (1852–1936) is widely regarded as the father of modern comparative psychology. Yet, Morgan initially had significant doubts about whether a genuine science of comparative psychology was even possible, only later becoming more optimistic about our ability to make reliable inferences about the mental capacities of non-human animals. There has been a fair amount of disagreement amongst scholars of Morgan’s work about the nature, timing, and causes of this shift in Morgan’s thinking. We argue that Morgan underwent (...) two quite different shifts of attitude towards the proper practice of comparative psychology. The first was a qualified acceptance of the Romanesian approach to comparative psychology that he had initially criticized. The second was a shift away from Romanes’ reliance on systematizing anecdotal evidence of animal intelligence towards an experimental approach, focused on studying the development of behaviour. We emphasize the role of Morgan’s evolving epistemological views in bringing about the first shift – in particular, his philosophy of science. We emphasize the role of an intriguing but overlooked figure in the history of comparative psychology in explaining the second shift, T. Mann Jones, whose correspondence with Morgan provided an important catalyst for Morgan’s experimental turn, particularly the special focus on development. We also shed light on the intended function of Morgan’s Canon, the methodological principle for which Morgan is now mostly known. The Canon can only be properly understood by seeing it in the context of Morgan’s own unique experimental vision for comparative psychology. (shrink)

Western philosophy and science are responsible for constructing some powerful tools of investigation, aiming at discovering the truth, delivering robust explanations, verifying conjectures, showing that inferences are sound and demonstrating results conclusively. By contrast reasoning that depends on analogies has often been viewed with suspicion. Professor Lloyd first explores the origins of those Western ideals, criticises some of their excesses and redresses the balance in favour of looser, admittedly non-demonstrative analogical reasoning. For this he takes examples both from ancient (...) Greek and Chinese thought and from the materials of recent ethnography to show how different ancient and modern cultures have developed different styles of reasoning. He also develops two original but controversial ideas, that of semantic stretch and the multidimensionality of reality. (shrink)

This book challenges several widespread views concerning Aristotle's methods and practices of scientific and philosophical research. Taking central topics in psychology, zoology, astronomy and politics, Professor Lloyd explores generally unrecognised tensions between Aristotle's deeply held a priori convictions and his remarkable empirical honesty in the face of complexities in the data or perceived difficult or exceptional cases. The picture that emerges of Aristotle's actual engagement in scientific research and of his own reflections on that research is substantially more complex (...) than is usually allowed. (shrink)

Dr Lloyd writes for those who want to discover and explore Aristotle's work for themselves. He acts as mediator between Aristotle and the modern reader. The book is divided into two parts. The first tells the story of Aristotle's intellectual development as far as it can be reconstructed; the second presents the fundamentals of his thought in the main fields of inquiry which interested him: logic and metaphysics, physics, psychology, ethics, politics, and literary criticism. The final chapter considers the (...) unity and coherence of Aristotle's philosophy, and records briefly his later influence on European thought. This is a concise and lucid account of the work of a difficult and profound thinker. Dr Lloyd's business is only with the essentials; but he does not shirk the difficulties which arise in their interpretation, nor does he invest Aristotle with a spurious modernity. (shrink)

Writing to Henry Oldenburg in 1665, Spinoza says that he regards the human body as a part of nature. “But,” he adds significantly, “as far as the human mind is concerned, I think it is a part of nature too.” Genevieve Lloyd’s elegantly written book aims to investigate the meaning, implications and attractions of these characteristic Spinozistic claims.

This book was first published in 1991. The study of ancient science and its relations with Greek philosophy has made a significant and growing contribution to our understanding of ancient thought and civilisation. This collection of articles on Greek science contains fifteen of the most important papers published by G. E. R. Lloyd in this area since 1961, together with three newer articles. The topics range over all areas and periods of Greek science, from the earliest Presocratic philosophers to (...) Ptolemy and Galen. In each case the article is preceded by an introduction that assesses scholarly debate on the topic since the original publication. Professor Lloyd also suggests modifications and developments to his own position in the light of those debates and his own further research. (shrink)

Leibniz Reinterpreted tackles head on the central idea in Leibniz's philosophy, namely that we live in the best of all possible worlds. Strickland argues that Leibniz's theory has been consistently misunderstood by previous commentators. In the process Strickland provides both an elucidation and reinterpretation of a number of concepts central to Leibniz's work, such as 'richness', 'simplicity', 'harmony' and 'incompossibility', and shows where previous attempts to explain these concepts have failed. This clear and concise study is tightly focussed and assumes (...) no prior acquaintance with Leibniz or optimism. It thus serves as an ideal entry point into Leibniz's philosophy. (shrink)

On 1 November 1755, the city of Lisbon in Portugal was virtually destroyed by the largest documented seismic event ever to hit Europe. It is often claimed that the catastrophe severely damaged the plausibility of Leibniz’s optimism, and even the wider project of theodicy. Leibniz died several decades before the Lisbon earthquake struck, and so was unable to address it and the challenges thrown up by it, which would have included an account of how the event was consistent with God’s (...) providence. Contemporary scholars are of the view that Leibniz explained natural disasters like earthquakes as nothing more than the unfortunate consequences of the normal workings of simple laws of nature, and that God permits such disasters to happen because it would be unworthy of him to overrule the laws he has established. There certainly is this line of thinking in Leibniz’s writings, but it is far from being the whole story, as we shall see. The aim of this paper is to determine what Leibniz’s response to the Lisbon earthquake would have been, had he lived to know about the event. (shrink)

The history of the Institute of Medical Ethics has been well recorded. Accounts of its origins in the London Medical Group were published in an academic paper of 2003,1 in the transcript of a Wellcome Witnesses to Twentieth Century Medicine Seminar in 20072 and in a chapter of the 2009 Cambridge World History of Medical Ethics.3 In 2013, 50 years since the inauguration of its first series of lectures and symposia, the LMG as an organisation no longer exists, but its (...) aspirations and achievements are alive and well, both in the Journal of Medical Ethics and in the IME, now exploring a new phase as a membership organisation. Other papers in this issue will discuss the history and prospects of the Journal and Institute. But the LMG, similar medical groups in all other British medical schools and the Society for the Study of Medical Ethics from which the IME derived also have a significant continuing life in the thinking and practice of many medical and healthcare professionals who participated in their activities, and then in turn on those influenced by their thinking and practice. The LMG, it could be said, is ‘no more’ an organisation ‘Now but a whole climate of opinion’.4A bottom-up evolutionThe first medical students to be involved in the LMG may not have foreseen its influence on their future careers, but many were aware of being part of something new and exciting. One of those with whom the first lecture series was planned was Margaret Lloyd . "The beginning of the LMG in 1963 was an exciting time for medical students in London. As a mature student entering St Mary's Hospital Medical School … ". (shrink)

Dr Lloyd writes for those who want to discover and explore Aristotle's work for themselves. He acts as mediator between Aristotle and the modern reader. The book is divided into two parts. The first tells the story of Aristotle's intellectual development as far as it can be reconstructed; the second presents the fundamentals of his thought in the main fields of inquiry which interested him: logic and metaphysics, physics, psychology, ethics, politics, and literary criticism. The final chapter considers the (...) unity and coherence of Aristotle's philosophy, and records briefly his later influence on European thought. This is a concise and lucid account of the work of a difficult and profound thinker. Dr Lloyd's business is only with the essentials; but he does not shirk the difficulties which arise in their interpretation, nor does he invest Aristotle with a spurious modernity. (shrink)

Long before science as we know it existed, sophisticated studies of the physical world were undertaken-in Mesopotamia, India, China, and Greece. G. E. R. Lloyd explores the methods, subject-matter, and aims of those studies. He illuminates the origins of human intellectual inquiry, finding similarities and differences across cultures.

This paper is concerned with Leibniz’s Egypt Plan, written in 1671 and 1672, when Leibniz was in the service of the Elector of Mainz. One of the aims of this paper is to offer a more balanced and plausible reading of the religious benefits of war that Leibniz outlines in his Egypt plan.

The impression we are often given by historians of philosophy is that the readiness of medieval philosophers to appeal to authorities, such as The Bible, the Church, and Aristotle, was not shared by many early modern philosophers, for whom there was a marked preference to look for illumination via experience, the exercise of reason, or a combination of the two. Although this may be accurate, broadly speaking, it is notable that, in spite of the waning enthusiasm for deferring to traditional (...) authorities, appeals to scripture remained commonplace in the work of early modern philosophers. In order to understand the philosophers of the early modern period, the philosophies they developed, and the debates they fought, we need to understand how they used scripture. This paper is intended to contribute to this desideratum by examining how scripture was used by those who engaged in a particular debate within natural philosophy, the so-called beast-machine controversy of the 17th and 18th centuries. (shrink)

One of the most pressing philosophical problems in early modern Europe concerned how the soul and body could form a unity, or, as many understood it, how these two substances could work together. It was widely believed that there were three (and only three) hypotheses regarding the union of soul and body: (1) physical influence, (2) occasionalism, and (3) pre-established harmony. However, in 1763, a fourth hypothesis was put forward by the French thinker André-Pierre Le Guay de Prémontval (1716–1764). Prémontval’s (...) hypothesis, given the grand name of “psychocracy” (i.e., the dominion or the rule of the soul), held that there was a real influence between soul and body, but that this was an immaterial kind of influence as opposed to the physical kind that had been entertained heretofore. Prémontval’s hypothesis is the focus of this paper. I shall begin by sketching out the details of Prémontval’s hypothesis (Section 1), then proceed to consider its claims to constitute a true fourth hypothesis distinct from the other three (Section 2), before closing by briefly considering two objections and the responses either that Prémontval himself made or that may be made on his behalf (Section 3). (shrink)

At the end of 1671 and start of 1672, while in the service of the Archbishop and Elector of Mainz, Leibniz composed his Egypt Plan, which sought to persuade Louis XIV to invade Egypt. Scholars have generally supposed that Leibniz’s rationale for devising the plan was to divert Louis from his intended war with Holland. Little attention has been paid to the religious benefits that Leibniz identified in the plan, and those who do acknowledge them are often quick to downplay (...) them. This tendency to downplay or even dismiss the religious benefits Leibniz claimed of the Egypt Plan is undermotivated and stems from a very superficial reading of the documents that together comprise it. In this paper I argue that we should take seriously Leibniz’s claim that a French invasion of Egypt would bring religious benefits, and that he saw them as important and intrinsically desirable inasmuch as he came to believe that the execution of the plan would lead to the flowering of co-operation and brotherhood among Christians in a show of inter-denominational koinonia, that is, fellowship with other Christians in the participation of shared goals. (shrink)

Daniel Kodaj has recently developed a pro-atheistic argument that he calls “the problem of religious evil.” This first premise of this argument is “belief in God causes evil.” Although this idea that belief in God causes evil is widely accepted, certainly in the secular West, it is sufficiently problematic as to be unsuitable as a basis for an argument for atheism, as Kodaj seeks to use it. In this paper I shall highlight the problems inherent in it in three ways: (...) by considering whether it is reasonable to say that “belief in God” causes evil; whether it is reasonable to say that belief in God “causes” evil; and whether it is reasonable to say that belief in God causes “evil.” In each case I will argue that it is problematic to make such claims, and accordingly I will conclude that the premise “belief in God causes evil” is unacceptable as it stands, and consequently is unable to ground Kodaj’s pro-atheistic argument. (shrink)

_ Source: _Volume 30, Issue 2, pp 202 - 221 There is ongoing scholarly debate over the role that Hobbes’s laws of nature play in grounding the moral requirement that subjects obey the government under which they live. This essay demonstrates how the laws of nature, when understood as natural duties, may directly ground a moral duty to obey one’s sovereign without positing that subjects have undertaken any covenant of subjection. Such a grounding avoids the problems that attend accounts that (...) depend on tacit covenant and coerced covenant. The essay describes the advantages of a natural duty account of the laws of nature over accounts that regard those laws as contractual obligations entered through voluntary acts, or as legal obligations to treat the natural laws as literal laws legislated by a sovereign God. (shrink)

On a sunny Sunday afternoon in 2012 a conflict arose between two men riding a popular mountain biking track in New Zealand. The bulk of this was filmed from a helmet-mounted action camera, facilitating a single case analysis of the transition from an everyday trouble to an unexpected violent ending. The two riders come across each other travelling downhill at speed on a narrow track. Unease quickly develops for the camera-clad rider wants to pass the rider in front, but except (...) for an intriguing and brief interlude, the first rider will not let the other pass. The second rider grows frustrated, progressing to tailgate the ‘slower’ rider, in the midst of which he invokes a rule of mountain biking conduct. The reflexive implications of the rule-invocation need to be seen to be believed. The video is used as data to get close to such seeing, and despite some limitations, we can see a clear trajectory where the rule significantly contributes to a moment of phenomenological salience. Thereafter, it becomes witnessably relevant to the conflict that develops. (shrink)

First published in 1999. Routledge is an imprint of Taylor & Francis, an informa company.

Metaphysics, Soul, and Ethics in Ancient Thought. Themes from the Work of Richard Sorabji, ed. Ricardo Salles , pp. ix + 592, £60.00, ISBN 019 926130 X.

This paper is concerned with Leibniz's doctrine of “universal rational religion,” i.e. a religion derived from reason and hence accessible to all, Christians and non-Christians alike, by virtue of the universality of reason. In this paper I shall identify some of the key theological truths and doctrines that Leibniz believed could be reached via reason, and as such would be accessible to non-Christians. While Leibniz held that there were a number of theological truths and doctrines that were potentially available to (...) all, he also acknowledged that non-Christians had enjoyed very limited success in reaching them. I end the paper by identifying Leibniz’s explanation for this. (shrink)

This paper is concerned with Leibniz’s Egypt Plan, written in 1671 and 1672, when Leibniz was in the service of the Elector of Mainz. One of the aims of this paper is to offer a more balanced and plausible reading of the religious benefits of war that Leibniz outlines in his Egypt plan.

Bringing together Leibniz's writings on God and religion for the very first time, Leibniz on God and Religion: A Reader reflects the growing importance now placed on Leibniz's philosophical theology. This reader features a wealth of material, from journal articles and book reviews published in Leibniz's lifetime to private notes and essays, as well as items from his correspondence. Organised thematically into the following sections, this reader captures the changes in Leibniz's thinking over the course of his career: 1. The (...) Catholic Demonstrations, 2. The existence and nature of God, 3. Reason and faith, 4. Ethics and the love of God, 5. The Bible, 6. Miracles and mysteries, 7. The Churches and their doctrines, 8. Grace and predestination, 9. Sin, evil, and theodicy, 10. The afterlife, and 11. Non-Christian religions. In preparing this reader, Strickland has returned to Leibniz's original manuscripts to ensure accurate translations of key texts, the majority of which have not been available in English before. The reader also contains a number of texts previously unpublished in any form. Alongside the translations, this reader contains an introductory essay, explanatory notes on all of the texts, and suggestions for further reading. This valuable sourcebook enables students of all levels to achieve a well-rounded understanding of Leibniz's philosophical theology. (shrink)

The essays in this volume provide a state-of-the-art overview of the central elements of Hobbes's political philosophy and the ways in which they can be interpreted. The volume's contributors offer their own interpretations of Hobbes's philosophical method, his materialism, his psychological theory and moral theory, and his views on benevolence, law and civil liberties, religion, and women. Hobbes's ideas of authorization and representation, his use of the 'state of nature', and his reply to the unjust 'Foole' are also critically analyzed. (...) The essays will help readers to orient themselves in the complex scholarly literature while also offering groundbreaking arguments and innovative interpretations. The volume as a whole will facilitate new insights into Hobbes's political theory, enabling readers to consider key elements of his thought from multiple perspectives and to select and combine them to form their own interpretations of his political philosophy. (shrink)