The physiological blind spot corresponds to the optic disc where the retina contains no light-detecting photoreceptor cells. Our perception seemingly fills in this gap in input. Here we suggest that rather than an active process, such perceptual filling-in could instead be a consequence of the integration of visual inputs at higher stages of processing discounting the local absence of retinal input. Using functional brain imaging, we resolved the retinotopic representation of the physiological blind spot in early human visual cortex and (...) measured responses while participants perceived filling-in. Responses in early visual areas simply reflected the absence of visual input. In contrast, higher extrastriate regions responded more to stimuli in the eye containing the blind spot than the fellow eye. However, this signature was independent of filling-in. We argue that these findings agree with philosophical accounts that posit that the concept of filling-in of absent retinal input is unnecessary. (shrink)

Applied Christian Ethics addresses selected themes in Christian social ethics. Part one shows the roots of contributors in the realist school; part two focuses on different levels of the significance of economics for social justice; and part three deals with both existential experience and government policy in war and peace issues.

Spirituality is a universal human experience. Within the process of development, the role of spirituality as a developmental asset is understudied in general and especially within majority world contexts. In this article, we frame advances in spirituality research and practice with youth around three pillars: (a) theory, (b) measurement, and (c) research about and evaluations of positive youth development (PYD) programs in low- and middle-income countries. We place PYD programs as associated with dynamic, relational developmental systems (RDS)-based models of human (...) development, describe spirituality and the “Big Three” features of effective PYD programs as aligning to promote thriving, and discuss spirituality as a strength, as a key asset, in the lives of youth. We discuss advances in developmental methods and measures for describing, explaining, and promoting spirituality and PYD and offer a case study that responds to a United States Agency for International Development call for action and evaluations of spirituality within the context of a PYD program in the majority world. Considerations for future research about spirituality and youth development are discussed. (shrink)

We argue that C. Darwin and more recently W. Hennig worked at times under the simplifying assumption of an eternal biosphere. So motivated, we explicitly consider the consequences which follow mathematically from this assumption, and the infinite graphs it leads to. This assumption admits certain clusters of organisms which have some ideal theoretical properties of species, shining some light onto the species problem. We prove a dualization of a law of T.A. Knight and C. Darwin, and sketch a decomposition result (...) involving the internodons of D. Kornet, J. Metz and H. Schellinx. A further goal of this paper is to respond to B. Sturmfels’ question, “Can biology lead to new theorems?”. (shrink)

2. The equal status mentioned in Thesis 2 need not mean, "equally concrete" or "inclusive," but only, "equally real," where "real" means having a character of its own with reference to which opinions can be true or false. But becoming or process is alone fully concrete or inclusive, since if A is without becoming, and B becomes, then the togetherness of AB also becomes. A new constituent means a new totality. In this sense, becoming is the ultimate principle.

‘In historical composition’, said Samuel Johnson, ‘all the greatest powers of the human mind are quiescent’. Perhaps so, but even if the historian must appear dull and plodding next to his more profound and shimmering brethren, the philologists and – of course – the literary critics, still he must be granted at least one virtue in plenty and that virtue is scepticism. Especially nowadays. While not quite yet ready to surrender his province to the meta-historians, the historian continues diligently (...) to scrutinize his sources with such wary Pyrrhonism as he can muster. He is especially suspicious of those ancients whose intelligence and whose literary gifts he most admires, hence the unrelenting distrust of authors such as Cicero and Caesar – and recently even such paragons of accuracy as Polybius. Still, a few authors have earned our unconscious credence, it would seem, merely by dint of their artlessness; we simply do not respect them enough to doubt them. A case in point: Varro's De Re Rustica, a remarkable ensemble of three dialogues, a highly literary work, yet one whose obvious inadequacies have distracted readers from its attempts at literariness and consequently have led them to take its veracity for granted – even when it relates to items having little or nothing to do with agriculture. A brief passage in the third book of R.R. informs us, or rather seems to inform us, that what was perhaps republican Rome's most illustrious family, the Claudii Pulchri, was reduced to poverty in the seventies B.C. in the aftermath of the death of the consul of 79 – evidence that has been accepted widely by modern scholars. In this paper I hope to show that there is no good reason for believing Varro's Appius when he claims to have been pauperized by his father's death and, furthermore, that to do so is to fail to appreciate the artistry and wry humour with which Varro has composed Book Three. (shrink)

‘In historical composition’, said Samuel Johnson, ‘all the greatest powers of the human mind are quiescent’. Perhaps so, but even if the historian must appear dull and plodding next to his more profound and shimmering brethren, the philologists and – of course – the literary critics, still he must be granted at least one virtue in plenty and that virtue is scepticism. Especially nowadays. While not quite yet ready to surrender his province to the meta-historians , the historian continues (...) diligently to scrutinize his sources with such wary Pyrrhonism as he can muster. He is especially suspicious of those ancients whose intelligence and whose literary gifts he most admires, hence the unrelenting distrust of authors such as Cicero and Caesar – and recently even such paragons of accuracy as Polybius. Still, a few authors have earned our unconscious credence, it would seem, merely by dint of their artlessness; we simply do not respect them enough to doubt them. A case in point: Varro's De Re Rustica, a remarkable ensemble of three dialogues, a highly literary work, yet one whose obvious inadequacies have distracted readers from its attempts at literariness and consequently have led them to take its veracity for granted – even when it relates to items having little or nothing to do with agriculture. A brief passage in the third book of R.R. informs us, or rather seems to inform us, that what was perhaps republican Rome's most illustrious family, the Claudii Pulchri, was reduced to poverty in the seventies B.C. in the aftermath of the death of the consul of 79 – evidence that has been accepted widely by modern scholars. In this paper I hope to show that there is no good reason for believing Varro's Appius when he claims to have been pauperized by his father's death and, furthermore, that to do so is to fail to appreciate the artistry and wry humour with which Varro has composed Book Three. (shrink)

Principled discussions of civil rights became inherently less likely as a direct result of the observation by Earl Warren, in Brown v. Board of Education, that, respecting freedmen, “Education of Negroes was almost non-existent, and practically all of the race were illiterate,” and in proportion as that observation increasingly became the foundation of common opinion on the subject. Warren's observation was not true in any meaningful or non-trivial sense. Nevertheless, it served to perpetuate the myth of a backward people needing (...) help to catch up instead of the truth of a people being held back. That is the perspective – the disadvantaged group perspective – that ultimately infected all discussion of civil rights, even after the designation of so-called “disadvantaged groups” had been extended beyond American blacks. To define civil rights, we may well begin with what all mankind would likely recognize. Thus the dictionary definition of “civil rights” stands: “the rights that belong to all individuals in a nation or community touching property, marriage, and the like.” In that definition the term “rights” may be further expanded to mean “legitimate claims,” following the definition of right as law – as “a claim or title or interest in anything whatever that is enforceable by law.” This definition applies with minimal distinction of regimes intruding and, therefore, without the host of recent complications in the United States that create the impression that civil rights have something to do with pluralism. Previously, the generic definition was thought to exhaust the meaning of the term in the United States. (shrink)

"Bibliographical notes": pages [243]-244.

Everyone knows the statement of Servius that Virgil was compelled by Augustus to alter the second half of the Fourth Georgic after the fall of Gallus, and that he substituted the story of Aristaeus for the laudes Galli. This statement, often doubted by older generations, has had such a remarkable success in recent years that anyone who ventures to impugn it must feel that he is pleading with a halter round his neck before a one-sided jury. It is notable, however, (...) that these jurors, though one-sided, are by no means united, save in their determination to uphold the credit of Servius. One group will assure us that the episode of Aristaeus shows obvious signs not only of haste but of immaturity, and they draw a pathetic picture of the grief-stricken Virgil, ordered to bring out a second edition minus the praises of his friend Gallus, and half-heartedly throwing together some bits of juvenile stuff which he happened to have handy. Others assure us that the tale of Aristaeus shows us a more mature Virgil, nearer to the Virgil of the Aeneid. But the Servians really cannot have it both ways. They must make up their minds in the one direction or in the other if they are to be taken seriously. They make it doubly difficult for us to take them seriously when they try to tell us what Servius meant—but of that more anon. The present paper is an attempt by a converted Servian to examine frankly the arguments which have been advanced in support of Servius. Most of these may be found in Skutsch, Aus Vergils Frühzeit, pp. 140–147. One is very reluctant to use disparaging words about an eminent scholar who has served the cause of learning in so many ways; but it can scarcely be denied that the work just mentioned, in spite of its ingenuity and enthusiasm, shows a lamentable lack of three great essentials—a judicial temper, accurate statement of facts, and cogent reasoning. There is also at times a regrettable vagueness of expression, suggesting that the author is concealing inward doubts or shrinking from thought. All these deficiencies are to some extent present in the section with which this paper is concerned. (shrink)

The subject of these lines may be found in Caes. B.C. I. 54, from which they are in part derived, though probably at second hand. The reference is to Caesar's tactics after the floods in the plain around Ilerda. He built a number of coracles after the British fashion, and had them conveyed to a point on the right bank of the Sicoris, twenty-two miles from his camp. In these boats he sent a number of men across the river, who (...) fortified some rising ground. Then he sent a legion across and started the building of a bridge from both sides at once: hue legionem postea traiecit atque ex utraque parte pontem institutum biduo perfecit. (shrink)

This well-known passage refers to the growth of latifundia, a symptom of Rome's decadence. In v. 170 ignotis is generally taken to mean ‘unknown to the owners,’ and thus, it seems to me, the point of the passage is missed. There is a double antithesis; longa is contrasted with breuίa, parua, and ίgnotίs with notίs, ίnlustrίbus, or the like. The latter antithesis is implied in Camίllί, Curίorum; the other is left to be understood. In the good old days farms were (...) small, but were cultivated by the most eminent citizens, men like Camillus and Curius Dentatus; now these small farms are combined to form latίfundίa, managed by nobodies , whether slaves or tenant farmers. The juxta-position of longa and sub ίgnotίs is intentional. (shrink)

Hosius and others have suspected v. 87 on the ground that it is omitted by most of the good MSS. But the omission, as Weber saw, is due to the similar endings of vv. 86–87. It is difficult to see how a student of Lucan could convince himself that any other person is the author of v. 87, which not only improves the passage, but is wholly in keeping with the gloomy fatalism of Pompey as represented by Lucan in many (...) other places. Francken's objection that the emphatic me should have a pronoun contrasted with it may be sufficiently answered by a reference to vv. 396–398 of the same book; many instances from other authors could be added. (shrink)

The Thebaid, with all its faults, deserves more attention than it generally receives in these days; it is something more than a desirable quarry for ‘unseens.’ Its exegesis is in a very backward state, quite unworthy of modern scholarship. It is almost a hundred years since the last explanatory edition was published, and the commentators on Statius have, as a rule, been more remarkable for their learning than for their discernment. Before the appearance of the Oxford edition and the latest (...) Teubner recension the materials for the establishment of the text were very defective; and in spite of the valuable labours of Messrs. Garrod and Klotz , the Thebaid still offers considerable scope for the textual critic. The MSS. present many puzzles; it must also be confessed that in not a few places the work of scholars in the last century has done more harm than good. The following notes on Book II., whatever their value, may perhaps help to call attention to the need for more labourers in a promising field. (shrink)

The Thebaid, with all its faults, deserves more attention than it generally receives in these days; it is something more than a desirable quarry for ‘unseens.’ Its exegesis is in a very backward state, quite unworthy of modern scholarship. It is almost a hundred years since the last explanatory edition was published, and the commentators on Statius have, as a rule, been more remarkable for their learning than for their discernment. Before the appearance of the Oxford edition and the latest (...) Teubner recension the materials for the establishment of the text were very defective; and in spite of the valuable labours of Messrs. Garrod and Klotz, the Thebaid still offers considerable scope for the textual critic. The MSS. present many puzzles; it must also be confessed that in not a few places the work of scholars in the last century has done more harm than good. The following notes on Book II., whatever their value, may perhaps help to call attention to the need for more labourers in a promising field. (shrink)

The passage is thought to refer to the efforts of the Macedonians to honour the memory of their dead king. Who are meant by reges is not at all clear, and summa nituntur opum ui, as we may infer from other passages where the same or a similar expression is used, can hardly refer to anything but the labour of the hands. Probably we ought to read regis, i.e. Philippi. The lines will then refer to the work of the people.

The passage is thought to refer to the efforts of the Macedonians to honour the memory of their dead king. Who are meant by reges is not at all clear, and summa nituntur opum ui, as we may infer from other passages where the same or a similar expression is used, can hardly refer to anything but the labour of the hands. Probably we ought to read regis, i.e. Philippi. The lines will then refer to the work of the people.

The subject of these lines may be found in Caes. B.C. I. 54, from which they are in part derived, though probably at second hand. The reference is to Caesar's tactics after the floods in the plain around Ilerda. He built a number of coracles after the British fashion, and had them conveyed to a point on the right bank of the Sicoris, twenty-two miles from his camp. In these boats he sent a number of men across the river, who (...) fortified some rising ground. Then he sent a legion across and started the building of a bridge from both sides at once: hue legionem postea traiecit atque ex utraque parte pontem institutum biduo perfecit. (shrink)

This chapter describes the potential far‐reaching consequences of contemplative higher education for the fields of science and medicine.