Questions concerning the moral status of embryos, the validity of new technologies for human reproduction, ownership of one's own genes, gene patenting, privacy and discrimination have all been raised and debated. Although debate is healthy, it is only useful if all participants understand the fundamental biological principles underlying human life, human genes and human parenthood. Many people believe that science can play no role in determining when human life begins. I argue that this false assumption is based on a failure (...) to separate different contradictory meanings of the term 'human life'. In actuality, science has provided great insight into when and how human life and human beings come into existence. I argue as well that, contrary to our intuitive feelings, there is no physical connection between any father and his son; shared genes represent shared information and nothing more. Nevertheless, the feeling of a physical connection between parent and child is very real and instinctive, no matter how false it may be. These new understandings have profound ramifications for the way we treat issues surrounding human reproduction, including both abortion and assisted reproductive technologies. (shrink)

Quantum electrodynamics is the theory of electrons and other elementary charged particles, interacting through the exchange of light quanta. Albert Einstein introduced the light quantum in 1905, but for about three decades physicists applied quantum ideas mainly in theories of the structure and behavior of matter, not to electromagnetic radiation itself, which was always treated semi-classically. This began to change after 1923 with the discovery of the Compton effect and its kinematic description by Arthur Compton and Peter Debye, based on (...) the light quantum. In this paper we review the study of high-energy radiation that led to Compton's discovery. We discuss the analysis of the intensity distribution of Compton-scattered radiation that together with the ''new'' quantum theory beginning in 1925, resulted in the development, especially by Pascual Jordan and Paul Dirac, of a quantum theory of electromagnetic radiation in interaction with matter. (shrink)

This brief monograph consists of three chapters on Nietzsche's sense of tragedy, on perspectivism and on the much debated theory of eternal recurrence. DeFeo believes that the first and last of Nietzsche's works represent the poles between which Nietzsche overthrew metaphysics. In the Birth of Tragedy, the discovery of the existential contradiction of the finite dimension of human existence obtains at the aesthetic level of tragedy. Here the human contradiction is evinced in the wisdom of Dionysius. In The Will to (...) Power, the existential contradiction is understood in the temporal form of an epic: it becomes the ability to overthrow any form of perspectivism. The motive of Nietzsche's philosophy is the search for a novel center of values which, DeFeo believes, Nietzsche finds in the Übermensch. Throughout his short essay, the author constantly cites Husserl, Sartre, and Heidegger. He explicitly interprets Heidegger in the tradition of Nietzsche. Yet it seems rather misleading to assimilate Nietzsche's reduction to Heidegger's existential analysis.--L. M. P. (shrink)

The first English version of Sartre's major work. Only time and use can decide the adequacy of a translation of a work so large and important, but on first examination the translator seems to have done an accurate and responsible job. There are extensive notes marking deviations from the French text and idiom, and an Introduction deals with certain Sartrean problems and criticisms, though not in a very enlightening way.--L. M.

One hundred years separates the birth of T. Campanella from that of G. B. Vico. This collection of essays, published in 1969 by the Archives of Philosophy, is the end result of a congress held in Rome commemorating the birth of both philosophers. Campanella and Vico are celebrated in the same volume on the assumption of ideal affinities besides the accidental circumstances of having been born a century apart. Unfortunately, only one essay is expressly devoted to the analysis of Campanella's (...) and Vico's metaphysics. While the first two papers consider Campanella's medical biography and his epistemology, the last four are dedicated solely to various aspects of Vico's thought. On Iacobelli Isoldi falls the responsibility of justifying the title of the volume. But her attempt to demonstrate a family resemblance between Vico's and Campanella's metaphysics remains farfetched. For Campanella's way of solving the theoretical problem arising from Descartes' dualism issues in inevitable skepticism. Campanella never abandoned the position that the cogito is a vehicle of certainty, but not a criterion of truth. Vico on the other hand, overcomes his initial skepticism by transforming the criterion of truth into a criterion of certainty. In the New Science he demonstrates how man can possess true knowledge of the social and historical sciences. To demonstrate that this symposium had been assembled for reasons other than physical convenience, more papers on possible relations between the Dominican friar of Cosenza and the professor of eloquence of Naples would have been a desideratum.--L. M. P. (shrink)

This volume is a collection of testimonia and fragments of the Presocratics designed to introduce the Italian high school student to an understanding of what philosophy is. This purpose is so praiseworthy that it should deter the specialist from raising his eyebrows at the volume's shortcomings. Curi has selected only fragments of Thales, Anaximander, Anaximenes, Pythagoras, Xenophanes, and the Eleatics. Empedocles, Anaxagoras and the Atomists are excluded from the selections, presumably because the editor holds, with many Italian scholars, the questionable (...) theory that by "Presocratics" is understood only those thinkers who lived before the birth of Socrates. The translation of texts from the sixth edition of Diels and Kranz is accurate and readable, and the selections of testimonia are more comprehensive than the ones found in the textbooks of Burnet, Nahm, and Robinson. It is pedagogically interesting to ask what the very young may learn from this volume. The answer lies in its short introduction and in the critical footnotes attached to each fragment. Unlike the aforementioned English and American authors, Curi avoids textual exegesis and analysis of the mythopoeic background of Homer and Hesiod to which the early philosophic views may be related. He centers his own comments on the intricate issues of ancient and modern historiography. He analyzes the history of ancient historiography from Aristotle to Mondolfo and concludes that Wilamowitz, Stenzel, and Jaeger are the only historiographers who have been able to capture the complexity of Presocratic philosophy. Curi's method of teaching philosophy and his own philosophical views goes beyond the scope of this notice, however we can not help but remark how much Croce's spirit still pervades the Italian class-room.--L. M. P. (shrink)

Three major problems continue to perplex every interpreter of Stoic logic since Lukasiewicz's [[sic]] revolutionary studies in 1932: the alleged opposition of Stoic dialectic to Aristotelian syllogistic; the baffling status of "implication" in Diodorus and Chrysippus; the questionable completeness of the Stoic system based on the five "indemonstrables." Expanding on Lukasiewicz's [[sic]] findings, Benson Mates and Mary Kneale argued for interpreting Stoic logic in terms of a logic propositions formally analogous to our propositional calculus. Furthermore Mates and, to a less (...) extent, Kneale cast doubts on the accepted opinion that Diodorus' "implication" was the ancient version of what C. I. Lewis calls "strict implication," and opted for B. Russell's "formal implication," while attributing the first type of implication to Chrysippus alone. Finally Mates, Kneale, and Reymond questioned the alleged completeness of the Stoic logic system. Among recent logicians this very question still calls for an answer. In form and content, Mignucci's knowledgeable study on the meaning of Stoic logic is a lucid restatement of his predecessors published conclusions. With the exception of the first chapter devoted to a résumé of the main contributions in the field, the remaining sections of his essay are organized around Mates' topical structure of Stoic epistemology and semantics, the doctrine of the proposition, and the theory of the five "anapodictics." Mignucci makes, however, two relevant additions which may raise suspicion among the most rigorous of logicians. In the first chapter and again in the conclusion of his essay, he analyzes carefully the alleged opposition of Aristotle's logic of classes to the Stoic logic of propositions. For Mignucci, the acceptance of the logic of propositions implies one's commitment to an ontological domain which is incompatible with the metaphysical discourse of the logic of classes. He argues that the two logics are complete and formally analogous only in the sense that from the Stoic first axiom and from the Aristotelian Barbara one can deduce all the rules which constitute their respective logics. This completeness is, however, logically dependent upon the Aristotelian and Stoic view of reality.--L. M. P. (shrink)

A critical study of the "shudder before God", the "shudder before death", and the "shudder before the other person", favoring Sartre. The author's position is largely derived from the nature-mysticism of D. H. Lawrence. His own unscrutinized assumptions are so thoroughly "aesthetic" that the religious passion of Kierkegaard, the ontological passion of Heidegger, and the ethical passion of Sartre appear in his book somewhat distorted. --L. M.

John Dewey is one of the American philosophers strongly influenced by Hegel. For this reason, perhaps, certain Italian scholars have always been attracted to him, even when, as in the case of Croce, they strove to repudiate his doctrines. In this tradition, Aloysio's volume blazes the trail for a new approach to Dewey's scholarship in Italy. The volume issues from a seminar held at the University of Aquila during which Aloysio and his students read five works of Dewey. Significantly enough, (...) the works chosen for such an enterprise belong to the period when Dewey bids farewell to the idealism of his youth and takes a critical look at his philosophical program of reconstruction. The chapters of the book are devoted to a critical analysis of the five books studied during the seminar: Reconstruction in Philosophy ; Human Nature and Conduct ; Experience and Nature ; The Quest for Certainty ; and, A Common Faith. The outcome is a refreshing exposition of Dewey's mature thought. The method of question and answer used throughout the book is exceptionally efficacious to evince the contemporary relevance of Dewey's fundamental notions of experience, nature, and human conduct.--L. M. P. (shrink)

The author has succeeded in producing a volume which will be valuable to anyone who wishes to acquire a more catholic view of British analytic philosophy than the one offered in the works of Urmson, Warnock, and Ayer. The bibliography contains 698 items, and each of the ten chapters is amply footnoted with suggestions for further investigations. In the first chapter, Riverso meets the charge of antihistoricism by arguing convincingly that twentieth century analysis is the culmination of a movement which (...) began with Descartes' Regulae ad directionem ingenii. In the following three chapters he considers the entire Cambridge movement from its origin in B. Russell's and G. E. Moore's refutation of idealism to the disintegration of logical atomism in the second Wittgenstein. Italian readers will find especially useful Riverso's clear discussion of the impact of Wittgenstein's Tractatus on the Vienna circle, of his analysis of Ayer's radical refutation of metaphysics, as well as of the polemics of Lazerowitz and Malcolm against the principle of verifiability. In the final four chapters, Riverso takes on the arduous task of telling the story of the whole Oxonian movement. He clarifies beautifully the reasons for the transformation from normal analysis to ordinary language, and finally to the various types of grammatical elucidations of Ryle, Austin, and Strawson. Riverso dedicates a chapter each to the language of perception, the concept of person, religious language, and metaethics. In the concluding pages, he launches into passionate defense of analysis as the best therapy for our social ills and as the only alternative to Marxist ideology.--L. M. P. (shrink)

The preoccupation evinced by Italian scholars for Protagoras and the Sophistic movement is extraordinary and somewhat comparable to the interest which American philosophers have recently shown in Parmenides and the Eleatics. Since the Protagoras revival in the 'Forties' numerous Italian editions of the Sophistic fragments have been published and a constellation of contradictory reconstructions of Protagoras' thought has been offered to a perhaps unduly tolerant public. In the present study Zeppi intends to refute all extant historiography from Gomperz to Capizzi (...) in the name of a unitary interpretation based upon the internal consistency of Protagoras' ethical and epistemological doctrines. Such an interpretation will do justice, Zeppi believes, to the complexity of Protagoras' thinking while revealing the central position he occupies in the philosophical tradition before Plato. Accordingly Zeppi devotes the first part of his essay to Protagoras' doctrines and the second to earlier Presocratics and the Sophists in general. Finally he offers thought-provoking studies on the Anonymus Iamblichi, on the Cyrenaic school, on Democritus' ethics and on its bearing on Protagoras. On the whole Zeppi is more convincing in demolishing the views of his predecessors than in presenting his own ideas. Nevertheless his hypothesis of Protagoras as an ethical emotivist, a sense-datum theorist and a thinker divorcing truth from morality is refreshingly questionable.--L. M. P. (shrink)

Of Peter Abelard's logical writings, the fruit of thirty-five years of his activity as a teacher and dialectician, there have been to date only four editions worthy of note: that of Cousin in 1836, of Geyer in 1919 and 1936, of Dal Pra in 1954, and lastly the critical reconstruction of Abelard's literal glosses by L. M. Rijk in 1956. With this handsome second edition of minor but relevant glosses of Abelard, Dal Pra aims to fill the gap still existing (...) in the previous collections. His volume includes Abelard's writings found in the Paris BN manuscripts n. 13.368 and 7493. Chronologically the former belongs to the period when Abelard was given the chair of dialectic at the University of Paris in 1114 and the latter to Abelard's more mature period when he began original speculations on the logical status of propositions in 1121. Dal Pra argues at great length that the glosses in the first manuscript are to be read as the best and only introduction to Abelard's own work on dialectic. Hence he suggests against Rijk the title Introductiones Dialecticae rather than Introductiones Parvulorum. He assembles them according to what he believes was Abelard's intellectual development at the time. They are: the glosses to Porphyrius, to Aristotle's Categories, to the De Interpretatione, and to Boethius' De Devisione. [[sic]] The second section of the volume contains the glosses Super Topica where Abelard discusses among other subjects his first position on the problem of universals. Against Geyer who had consigned these works to the literal glosses of Abelard, Dal Pra offers strong evidence for locating them in the bulk of Abelard's De Ingredientibus precisely between the De Interpretatione and the De Syllogismo Hypothetico. The modernity of Abelard's logical theory is well known among contemporary logicians. Dal Pra's finely planned and handsomely executed edition makes an excellent contribution to the history of medieval logic as well as to contemporary logical theories on names and propositions.--L. M. P. (shrink)