Ernst Mayr has argued that Darwinian theory discredited essentialist modes of thought and replaced them with what he has called "population thinking". In this paper, I characterize essentialism as embodying a certain conception of how variation in nature is to be explained, and show how this conception was undermined by evolutionary theory. The Darwinian doctrine of evolutionary gradualism makes it impossible to say exactly where one species ends and another begins; such line-drawing problems are often taken to be the decisive (...) reason for thinking that essentialism is untenable. However, according to the view of essentialism I suggest, this familiar objection is not fatal to essentialism. It is rather the essentialist's use of what I call the natural state model for explaining variation which clashes with evolutionary theory. This model implemented the essentialist's requirement that properties of populations be defined in terms of properties of member organisms. Requiring such constituent definitions is reductionistic in spirit; additionally, evolutionary theory shows that such definitions are not available, and, moreover, that they are not needed to legitimize population-level concepts. Population thinking involves the thesis that population concepts may be legitimized by showing their connections with each other, even when they are not reducible to concepts applying at lower levels of organization. In the paper, I develop these points by describing Aristotle's ideas on the origins of biological variation; they are a classic formulation of the natural state model. I also describe how the development of statistical ideas in the 19th century involved an abandoning of the natural state model. (shrink)

Rawls scholarship has not paid much attention to Rawls's early methodological writings so far, pretty much focusing on thereflective equilibrium(RE) which he is understood to have adopted inA Theory of Justice. Nelson Goodman's coherence-theoretical formulations concerning the justification of inductive logic inFact, Fiction and Forecasthave been suggested as the source of the RE. Following Rawls's methodological development in his early works, we shall challenge both these views. Our analysis reveals that the basic elements of RE can be located in his (...) ‘Two Concepts of Rules’ essay. We shall further show that the origins of RE go all the way back to Aristotle's methods of ethics, as RE accords with the methodology entitledsaving the appearances(SA) in recent Aristotle scholarship. (shrink)

Scholarship on Aristotle’s NICOMACHEAN ETHICS (hereafter “the Ethics”) flourishes in an almost unprecedented fashion. In the last ten years, universities in North America have produced on average over ten doctoral dissertations a year that discuss the practical philosophy that Aristotle espouses in his Nicomachean Ethics, Eudemian Ethics, and Politics. Since the beginning of the millennium there have been three new translations of the entire Ethics into English alone, several more that translate parts of the work into English and other modern (...) languages, and half a dozen collections of new articles discussing Aristotle’s Ethics. Such an outpouring of scholarship has produced an almost unmanageable wave of books, articles, and reviews. Through my topical bibliography, I seek to organize this wealth of scholarly writing so as to make it manageable both to scholars working across the disciplines of philosophy, classics, history, and politics, and to scholars pursuing theses on specific topics within the Ethics. The bibliography takes as its model and is much indebted to that compiled by Barnes, Schofield, and Sorabji in their Articles on Aristotle, Volume 2: Ethics and Politics (1977), which was further updated and incorporated into the complete bibliography to all of Aristotle’s writings in Barnes’s Cambridge Companion to Aristotle (1995). Although I have taken guidance from their model, my bibliography differs in one main respect. Whereas Barnes et al. were more selective and annotated their bibliography, I have been more comprehensive in my inclusion of items. I have sought to include all books and journal articles concerned with the Ethics written in English over the last 120 years; additionally, I have sought to include representative and central works of scholarship written on the Ethics in French, German, and Italian during the same period of time. (shrink)

This article expands a traditional pedagogic interpretation of Plato’s reasons for urging trainee rulers to study astronomy. It argues, primarily, that they need to become familiar with astronomy because it teaches them about cosmic harmony. This harmony indeed models a “personal harmony,” which will prevent them from becoming tyrants, and informs them about the analogous social harmony— which it will be their special duty to create and maintain. In Plato’s view, indeed, astronomy shows that social harmony requires obedience on the (...) part of the lower orders and that social goods are best distributed in accordance with a special antidemocratic principle of equality. (shrink)

Plato claimed that the regular solids are the building blocks of all matter. His views, commonly referred to as the geometric atomistic model, had enormous impact on human thought despite the fact that four of the five Platonic solids can not fill space without gaps. In this paper we quantify these gaps, showing that the errors in Plato’s estimates were quite small. We also develop a mean field approximation to convex honeycombs using a generalized version of Plato’s idea. This approximation (...) not only admits to view convex mosaics in$$d=3$$d=3dimensions as a continuum but we also find that it is quite accurate, showing that Plato’s geometric intuition may have been remarkable. (shrink)

Near the beginning of De Gen. et Cor. II.1, Aristotle claims that the generation and corruption of all naturally constituted substances are “not without the perceptible bodies”. It is not clear what he intends by this. In this paper I offer a new interpretation of this assertion. I argue that the assumption behind the usual reading, namely, that these “perceptible bodies” ought to be distinguished from the naturally constituted substances, is flawed, and that the assertion is best understood as a (...) claim that Aristotle has established in the second half of the first book of the De Gen. et Cor. (shrink)

This chapter presents a detailed explanation of Peirce’s early and late views on semiotic indeterminacy and then considers how those views might be applied within biosemiotics. Peirce distinguished two different forms of semiotic indeterminacy: generality and vagueness. He defined each in terms of the “right” that indeterminate signs extend, either to their interpreters in the case of generality or to their utterers in the case of vagueness, to further determine their meaning. On Peirce’s view, no sign is absolutely determinate, i.e., (...) every sign is indeterminate to at least some degree and so exhibits some degree of generality or vagueness. If Peirce was right about this, then no instance of biosemiosis is completely determinate—every biosign must be general or vague to some degree. I show that on Peirce’s view, whether a sign is general or vague depends on its immediate object, “the idea which the sign is built upon,” and I explain how Peirce would go about identifying the immediate object of a sign lacking both a minded utterer and a minded interpreter—an identification that must be possible if any biosign is indeterminate. (shrink)

از زمان ارسطو عقل عملی یا فرونسیس ، یعنی فضیلت مندانه عمل کردن. چنین معنایی برای این واژه تازمان هیوم باقی بود، اما هیوم باتاکید بر نقشی که امیال، انگیزه ها وانفعالات ما، هنگام اتخاذ تصمیمات اخلاقی ایفامی کنند، بر نقش امیال ونگیزه ها وعوامل روان شناسانه در عقل عملی، تاکیدکرد.کانت بعدازهیوم، بواسطه ویژگی هایی که برای عقل عملی ذکر کرد، همچون خودبنیادیِ آن واهمیت بیشتر قائل شدن برای اراده، تعریف جدیدی از عقل عملی ارائه داد که آراء هیوم را (...) دراین مساله با چالش های جدی مواجه ساخت؛ وی تلاش زیادی کردتا نقش امیال وانگیزه های روانشناسانه را ازحوزه تصمیم اخلاقی حذف کند؛ اماتلاشهای کانت وپیروانش برای بنا نهادن وجدان اخلاقی صرفاً بر مبنای عقل واراده، راه به جایی نبرد وهمچنان انتقادات مهمی به تفسیرصرفاً عقلانیِ کانت از عقل عملی وارد است. درعصرحاضر، عده ای از فیلسوفان اخلاق از جمله خانم فیلیپا فوت وفیلسوفان نوارسطویی دیگر، ضمن نقد وردّ تفسیر کانتی از عقل عملی با ارائه تعریفی جدید از عقلانیت عملی، تلاش دارند تا بین عقل وسایرمنابع انگیزشی ازجمله امیال وانگیزه ها، دراتخاذتصمیم صحیح اخلاقی سازش ایجاد کنند. دراین مقاله به بررسی انتقادات برخی فلاسفه برکانت درباب عقل عملی، پرداخته می شود. (shrink)

In this dissertation I argue that Thomas Aquinas’s understanding of human nature, of human flourishing and of virtue can fill the gap, identified by Elizabeth Anscombe in 1958, between Aristotle’s account of the virtuous life and contemporary sceptical moral philosophy, which is variously described as subjectivism, consequentialism, emotivism, and sophistry. Furthermore, I argue that a Thomist account of the practicably lived virtuous life is both relevant and applicable to officers and soldiers serving in the British Army of today, because it (...) offers a complete account of the human moral life, as opposed to the consequentialist, emotivist and deontological approaches to ethical judgement and reasoning currently prevalent in Western societies, which inform the worldview of both officers and soldiers. These approaches, however, offer only partial accounts of ethics based on impoverished understandings of human nature and, thus, inevitably have a detrimental effect on both the articulation of British military doctrine and on the actual moral conduct of officers and soldiers. I further argue, therefore, that the British Army needs to consciously return to the traditional Western approach to moral education based on the idea of the deliberate formation of virtuous character, which is very different from contemporary Western educational approaches, but which will better prepare British Army officers and soldiers for “the violent school of war”, as Thucydides calls it. (shrink)