In 1672, inspired by the wave theory of Ignace Gaston Pardies, Christiaan Huygens made his first attempt to explain the sine law of refraction, but in 1673 he abandoned his plans owing to difficulties concerning double refraction. Huygens was able to explain double refraction on 6 August 1677 after his discoveries of the axis of symmetry of the crystal and of ‘Huygens's principle’. On 6 August 1679, he wrote: ‘I have found the confirmation of my theory of light and of (...) refraction’, and then described an ‘experimentum crucis’ to decide between his theory and a rival hypothesis. A study of caustics may have led Huygens to the discovery of ‘Huygens's principle’. (shrink)

_A fresh, new translation of Augustine’s third work as a Christian convert__ "The 'Cassiciacum dialogues'... are of a high literary and intellectual quality, combining Ciceronian and neo-Platonic philosophy, Roman comedy and Vergilian poetry, and early Christian theology. They are also, arguably, Augustine’s most charming works, exhibiting his whimsical levity and ironic wryness."—_Credo__ The first four works written by St. Augustine of Hippo after his conversion to Christianity are dialogues that have influenced prominent thinkers from Boethius to Bernard (...) Lonergan. Usually called the “Cassiciacum dialogues,” these four works are of a high literary and intellectual quality, combining Ciceronian and neo-Platonic philosophy, Roman comedy and Vergilian poetry, and early Christian theology. They are also, arguably, Augustine’s most charming works, exhibiting his whimsical levity and ironic wryness. _On Order_ is the third work in this tetralogy, and it is Augustine’s only work explicitly devoted to theodicy, the reconciliation of Almighty God’s goodness with evil’s existence. In this dialogue, Augustine argues that a certain kind of self-knowledge is the key to unlocking the answers to theodicy’s vexing questions, and he devotes the latter half of the dialogue to an excursus on the liberal arts as disciplines that will help strengthen the mind to know itself and God. (shrink)

The best available introduction to the political thought of Augustine, if not to Christian political thought in general. Included are generous selections from _City of God_, as well as from many lesser-known writings of Augustine.

_A fresh, new translation of Augustine’s fourth work as a Christian convert_ The first four works written by St. Augustine of Hippo after his conversion to Christianity are dialogues that have influenced prominent thinkers from Boethius to Bernard Lonergan. Usually called the Cassiciacum dialogues, these four works are of a high literary and intellectual quality, combining Ciceronian and neo-Platonic philosophy, Roman comedy and Vergilian poetry, and early Christian theology. They are also, arguably, Augustine’s most charming works, exhibiting (...) his whimsical levity and ironic wryness. _Soliloquies_ is the fourth work in this tetralogy. Augustine coined the term “soliloquy” to describe this new form of dialogue. _Soliloquies__,_ a conversation between Augustine and his reason, fuses the dialogue genre and Roman theater, opening with a search for intellectual and moral self-knowledge before converging on the nature of truth and the question of the soul’s immortality. Foley’s volume also includes _On the Immortality of the Soul__,_ which consists of notes for the unfinished portion of the work. (shrink)

"Williams's masterful translation satisfies (at last!) a long-standing need. There are lots of good translations of Augustine's great work, but until now we have been forced to choose between those that strive to replicate in English something of the majesty and beauty of Augustine's Latin style and those that opt instead to convey the careful precision of his philosophical terminology and argumentation. Finally, Williams has succeeded in capturing both sides of Augustine's mind in a richly evocative, impeccably (...) reliable, elegantly readable presentation of one of the most impressive achievements in Western thought--Augustine's Confessions." --Scott MacDonald, Professor of Philosophy and Norma K. Regan Professor in Christian Studies, Cornell University. (shrink)

_A fresh, new translation of Augustine’s inaugural work as a Christian convert_ The first four works written by St. Augustine of Hippo after his conversion to Christianity have influenced prominent thinkers from Boethius to Bernard Lonergan. Usually called the Cassiciacum dialogues, these four works are a “literary triumph,” combining Ciceronian and neo-Platonic philosophy, Roman comedy and Vergilian poetry, and early Christian theology. They are also, arguably, Augustine’s most charming works, exhibiting his whimsical levity and ironic wryness. In (...) this first dialogue, Augustine and his interlocutors have retreated to a quiet country villa north of Milan to explore the history and teachings of Academic Skepticism. Augustine is both sympathetic to and critical of the Skeptics, eventually hypothesizing that they could not possibly have believed everything they taught. The dialogue serves as a fitting launch point for a knowledge of God and the soul, the overall subject of the Cassiciacum tetralogy. Michael Foley’s clear, precise and playful translations are accompanied by his brief, illuminating commentaries. (shrink)

_A fresh, new translation of Augustine’s inaugural work as a Christian convert_ The first four works written by St. Augustine of Hippo after his conversion to Christianity are dialogues that have influenced prominent thinkers from Boethius to Bernard Lonergan. Usually called the Cassiciacum dialogues, these four works are a “literary triumph,” combining Ciceronian and neo-Platonic philosophy, Roman comedy and Vergilian poetry, and early Christian theology. They are also, arguably, Augustine’s most charming works, exhibiting his whimsical levity and (...) ironic wryness. In this second, brief dialogue, Augustine and his mother, brother, son, and friends celebrate his thirty-second birthday by having a “feast of words” on the nature of happiness that includes a bittersweet metaphorical birthday cake. Using a process of reasoning that is philosophical as well as theological, Augustine and the group conclude that the truly happy life consists of “having God” through faith, hope, and charity. Michael Foley’s clear, precise and playful translations are accompanied by his brief, illuminating commentaries. (shrink)

In this new translation the brilliant and impassioned descriptions of Augustine's colourful early life are conveyed to the English reader with accuracy and art. Augustine tells of his wrestlings to master his sexual drive, his rare ascent from a humble Algerian farm to the edge of the corridors of high power at the imperial court of Milan, and his renunciation of secular ambition and marriage as he recovered the faith that his mother had taught him. It was in (...) a Milan garden that Augustine finally achieved the act of will to Christian conversion, which he compared to a lazy man in bed finally deciding it is time to get up and face the day. ABOUT THE SERIES: For over 100 years Oxford World's Classics has made available the widest range of literature from around the globe. Each affordable volume reflects Oxford's commitment to scholarship, providing the most accurate text plus a wealth of other valuable features, including expert introductions by leading authorities, helpful notes to clarify the text, up-to-date bibliographies for further study, and much more. (shrink)

There is little doubt that a second-order axiomatization of Zermelo-Fraenkel set theory plus the axiom of choice (ZFC) is desirable. One advantage of such an axiomatization is that it permits us to express the principles underlying the first-order schemata of separation and replacement. Another is its almost-categoricity: M is a model of second-order ZFC if and only if it is isomorphic to a model of the form Vκ, ∈ ∩ (Vκ × Vκ) , for κ a strongly inaccessible ordinal.

The violation of Bell inequalities seems to establish an important fact about the world: that it is non-local. However, this result relies on the assumption of the statistical independence of the measurement settings with respect to potential past events that might have determined them. Superdeterminism refers to the view that a local, and determinist, account of Bell inequalities violations is possible, by rejecting this assumption of statistical independence. We examine and clarify various problems with superdeterminism, looking in particular at its (...) consequences on the nature of scientific laws and scientific reasoning. We argue that the view requires a neo-Humean account of at least some laws, and creates a significant problem for the use of statistical independence in other parts of physics and science more generally. (shrink)

INTRODUCTION1 ARELY HAS A GREAT AND INFLUENTIAL THINKER taken pains to let others look at his previous literary career through his very own eyes....

In this book, Augustine Brannigan provides a critical examination of the major theories which have been devised to account for discoveries and innovations in ...

I argue for an account of vagueness according to which the root of vagueness lies not in the type of semantic-value that is best associated with an expression, but in the type of linguistic practice that renders the expression meaningful. I suggest, in particular, that conventions about how to use sentences involving attributions of vague predicates to borderline cases prevail to a lesser degree than conventions about how to use sentences involving attributions of vague predicates to clear cases.

This is a sequel to Augustine Shutte's previous book Philosophy for Africa. In that book he engages with some concepts central to traditional African thinking about human nature and society. In this book he offers a new interpretation of the chief ethical idea in African thought, Ubuntu. He argues that it complements the central European ethical notion of individual freedom, and shows how the two ideas can be combined to form an ethic based on a richer understanding of our (...) humanity. He then applies this ethic to different spheres of life: gender relations, sex and family life, education, health care, work, politics and religion. In each sphere he tries to show how an ethic of Ubuntu can provide concrete guidance for our continuing struggle to make a multi-cultural South Africa a truly humane society. (shrink)

Corruption is a major problem in many of the world’s developing economies today. World Bank studies put bribery at over $1 trillion per year accounting for up to 12 of the GDP of nations like Nigeria, Kenya and Venezuela. Though largely ignored for many years, interest in world wide corruption has been rekindled by recent corporate scandals in the US and Europe. Corruption in the developing nations is said to result from a number of factors. Mass poverty has been cited (...) as a facilitating condition for corruption just as an inability to manage a sudden upsurge in mineral revenues has been credited with breeding corruption and adventurous government procurement among public officials in countries like Nigeria and Venezuela. Virtually all developing nations that have serious corruption problems also have very limited economic freedom and a very weak enforcement of the rule of law. In such nations, corruption represents a regressive taxation that bears hard on the poor. It has a dampening effect on development and it could result in the production of inferior goods as companies find ways to accommodate under-the-table payments. Finally, corruption is a dangerous threat to the legitimacy of the governments of some of the developing nations themselves. It is suggested that new urgent initiatives are needed to deal with the dangers posed by corruption in the developing economies. They include making the economies of these nations more open by the withdrawal of the government from the productive sector and by the abolition of unnecessarily stringent restrictions on business conduct. The rule of law needs to be strengthened in these nations and those countries like Nigeria and Venezuela should ignore scruples over sovereignty and seek foreign assistance in the management of their oil wealth. Finally, multinationals should be made to disclose all the payments they make in developing nations to such organizations like International Chamber of Commerce or Transparency International where they can be reviewed by anyone interested. (shrink)

This article provides theoretical foundations to the widespread intuition that an individual duty to reduce one's carbon emissions should not be overly demanding, and should leave some space to personal life-projects. It does so by looking into the moral structure of aggregative problems such as climate change, and argues that contributing to climate change is less wrong than causing the same amount of harm in paradigm cases of harm-doing. It follows that strong agent-relative reasons, such as consideration of the agent's (...) most important life-projects, are likely sometimes to outweigh the reasons for refraining from contributing to climate change, especially when there is no alternative course of action. This, however, does not mean that individual carbon-emitters are off the hook, since a lot can be done to reduce carbon emissions without jeopardising one's most important life-projects. (shrink)

Geoengineering as a technological intervention to avert the dangerous climate change has been on the table at least since 2006. The global outreach of the technology exercised in a non-encapsulated system, the concerns with unprecedented levels and scales of impact and the overarching interdisciplinarity of the project make the geoengineering debate ethically quite relevant and complex. This paper explores the ethical desirability of geoengineering from an overall review of the existing literature on the ethics of geoengineering. It identifies the relevant (...) literature on the ethics of geoengineering by employing a standard methodology. Based on various framing of the major ethical arguments and their subsets, the results section presents the opportunities and challenges at stake in geoengineering from an ethical point of view. The discussion section takes a keen interest in identifying the evolving dynamics of the debate, the grey areas of the debate, with underdeveloped arguments being brought to the foreground and in highlighting the arguments that are likely to emerge in the future as key contenders. It observes the semantic diversity and ethical ambiguity, the academic lop-sidedness of the debate, missing contextual setting, need for interdisciplinary approaches, public engagement, and region-specific assessment of ethical issues. Recommendations are made to provide a useful platform for the second generation of geoengineering ethicists to help advance the debate to more decisive domains with the required clarity and caution. (shrink)