Richard Arthur and I proposed that the present in Minkowski spacetime should be thought of as a small causal diamond. That is, given two timelike separated events p and q, with p earlier than q, they suggested that the present is the set I+ ∩ I-. Mauro Dorato presents three criticisms of this proposal. I rebut all three and then offer two more plausible criticisms of the Arthur/Savitt proposal. I argue that these criticisms also fail.

J. M. E. McTaggart, in a famous argument, denied the reality of time because he thought that passage or temporal becoming was essential for the existence of time and that passage was a self-contradictory concept. This denial of passage has provoked a vast literature, two of the most important contributions being C. D. Broad’s painstaking defence of passage in his Examination of McTaggart’s Philosophy and D. C. Williams’ dazzling condemnation of it “The Myth of Passage.” -/- A careful reading of (...) these apparently opposed essays reveals that there is a common notion of passage that both philosophers endorse, the successive occurrence of sets of simultaneous events (assuming classical or Newtonian spacetime structure as background). This unexpected agreement provides a notion of the passage of time that, I claim, is lean enough to survive the criticisms of passage-deniers yet robust enough to satisfy the requirements of passage-affirmers. I undertake to describe and defend this notion. -/- . (shrink)

Mark Hinchliff concludes a recent paper, "The Puzzle of Change," with a section entitled "Is the Presentist Refuted by the Special Theory of Relativity?" His answer is "no." I respond by arguing that presentists face great difficulties in merely stating their position in Minkowski spacetime. I round up some likely candidates for the job and exhibit their deficiencies.

The aim of this essay is to introduce philosophers of science to some recent philosophical discussions of the nature and origin of the direction of time. The essay is organized around books by Hans Reichenbach, Paul Horwich, and Huw Price. I outline their major arguments and treat certain critical points in detail. I speculate at the end about the ways in which the subject may continue to develop and in which it may connect with other areas of philosophy.

One of the questions that is addressed, from various perspectives, is the origin of time-asymmetry. Given the time-symmetry of the dynamical laws, all inferences about the future that are derivable from a dynamical theory are matched by inferences about the past. For Huw Price, who discusses the origins of cosmological time asymmetry, this is reason to treat all time-asymmetric cosmological theories with caution. He dismisses both the inflationary model and Stephen Hawking’s proposal to account for time-asymmetry with his famous “no (...) boundary condition.” Instead, on the basis of the fact that we have no a priori reasons to distinguish between initial and final conditions, he advocates Gold’s time-symmetric model for the universe, in which the thermodynamical arrow of time is tied to the expansion of the universe, so that in the contracting phase towards the big crunch, entropy decreases. (shrink)

I present an account of the passage of time and the present in relativistic spacetimes, and I defend these views against recent criticism by Oliver Pooley and Craig Callender.

In a recent book, Asymmetries in Time, Paul Horwich presents a systematic account of various temporal asymmetries, including a neo-Reichenbachian account of the (apparent) fact that we know more about the past than the future, the epistemological time asymmetry. I find some obscurities in Horwich's presentation, however, and I argue that when his view is understood in a way that I shall propose, it does represent an advance on Reichenbach's, but it fails to vindicate Horwich's "main point...that our special knowledge (...) of the past derives from the fork asymmetry. (shrink)

Some elementary properties of tachyons are described and then it is argued that the claim that (T) Tachyons exist, is incompatible with the truth of the Special Theory of Relativity (STR). First it is argued that from T, STR, and the negation of the principle that (Pl) Effect never precedes cause, one can derive a paradoxical conclusion, one of the so-called "causal paradoxes". An obvious response is to affirm (Pl), but then it is argued that (Pl) and (T) entail that (...) STR is false. (shrink)

Wittgenstein's remarks in his Tractatus on mathematics are quite obscure. Benacerraf and Putnam wrote, "In his Tractatus Loqico-Philosophicus, Wittgenstein maintained, following Russell and Frege, that mathematics was reducible to logic." On the other hand, Max Black claims, "Wittgenstein does not regard mathematics as reducible to logic, in the manner of Whitehead and Russell." I offer a detailed commentary upon Wittgenstein's remarks, concluding that his views most likely do not follow those of Frege and Russell. I reject a criticism of Wittgenstein (...) presented by Black but find severe shortcomings in the view I take Wittgenstein to be presenting. (shrink)

In this paper I argue that the clash of the Sellars’ two images is particularly acute in the case of time. In Time and the World Order Sellars seems embarked on a quest to locate manifest time in Minkowski spacetime. I suggest that he should have argued for the replacement of manifest time with the local, path-dependent time of the “scientific image”, just as he suggests that manifest objects must be replaced by their scientific counterparts.

There is a wide-spread belief that we know more about the past than we do about the future. It may be difficult to express the content of this belief exactly and it may turn out that, when we find some precise expression of this belief, it is not so obviously true. I shall assume, however, that there is something to a belief shared not only by eminent philosophers but by cultures wholly distinct from our own, as the following quote indicates.We (...) know where the future is. It’s in front of us. Right? It lies before us—a great future lies before us—we stride forward confidently into it, every commencement, every election year. And we know where the past is. Behind us, right? So that we have to turn around to see it, and that interrupts our progress ever forward into the future, so we don’t really much like to do it. (shrink)

This volume is the record of a symposium on the structer of scientific theories held in urbana, Illinois in the spring of 1969. ofSeven main papers, commentaries, discussions, and a postscript form the bulk of the book. The rest is a nearly 240-page monograph-in-the-guise-of-an-introduction by the editor titled “The Search for Philosophic Understanding of Scientific Theories”.

John Earman's new book,World Enough and Space-Time, is a brisk account of the controversy between space-time absolutists and relationists. The book is intended, one is told, to be “appropriate for use in an upper-level undergraduate or beginning graduate course in the philosophy of science”, but Earman's no-holds-barred approach to the mathematics of space-time theories will have bludgeoned most philosophical readers, undergraduate or beyond, into submission long before it is revealed that Pirani and Williams “have studied the integrability conditions for Born-rigid (...) motions in curved space-times and have shown that space-times of Petrov types II, III, and N do not admit of nonrotating Born-rigid motions”. I say this sadly, because Earman's book is a discerning review of an important literature, and most of its main arguments can be grasped even if some technical details remain out of reach. The more you reach for those details, the more compelling the book will become. (shrink)

In a ‘Letter from Washington’ in The New Yorker, Elizabeth Drew reported some speculation regarding the mental processes of Ronald Reagan. In Drew’s words:The curious process Drew describes is clearly important in many ways -historically, politically, and perhaps legally. We contend that there is even some epistemological significance to Reagan’s method for the fixation of belief. We shall argue, in particular, that some of those curiously insulated beliefs which Reagan possesses qualify as knowledge under at least one leading causal reliabilist (...) theory of knowledge- that presented by F. Dretske in Knowledge and the Flow of Information. But, as we detail the structure of such beliefs, what is probably evident already will emerge quite clearly, viz., that these beliefs do not amount to knowledge. (shrink)

This book is a lively intellectual history of a small circle of thinkers, especially, but not solely, Harry Jaffa and Walter Berns, who challenged the "mainstream" liberal consensus of political science and history about how the American Founding should be understood. Along the way they changed the course of the conservative movement and had a significant impact on shaping contemporary political debates from constitutional interpretation, civil rights, to the corruption of government today. Most importantly, these thinkers explain the deep reasons (...) for patriotism--why we should love America not just because it is our country, but because it is a free and just country. (shrink)

Develops a theory of spiritual freedom and explores its relationship to problems of liberal political regimes.

In this incisive book, Michel de Certeau considers the uses to which social representation and modes of social behavior are put by individuals and groups, describing the tactics available to the common man for reclaiming his own autonomy from the all-pervasive forces of commerce, politics, and culture. In exploring the public meaning of ingeniously defended private meanings, de Certeau draws brilliantly on an immense theoretical literature to speak of an apposite use of imaginative literature.

Some institutional investors are exposed to social norms and public scrutiny. Prior research indicates that these norm-constrained institutions engage in negative screening and invest less in firms operating in ‘sin’ industries. We examine whether social norms also motivate these institutions to engage in positive screening—where they invest more in firms with better corporate social responsibility performance—and CSR-related activism—where they promote improvements in the CSR of existing investees. We find that firms with superior CSR performance have greater ownership by norm-constrained institutions, (...) consistent with positive screening, and we use a natural experiment to establish causality. We also find that increases in the shareholdings of norm-constrained institutions are associated with subsequent improvements in CSR, consistent with activism. Further, we rule out an alternative explanation for our results where the positive screening and activism are ‘profit-driven’ rather than driven by social pressure. Thus, our results suggest that the influence of social norms on stock markets is more pervasive than documented in the prior literature. (shrink)

Michel de Certeau considers the uses to which social representation and modes of social behavior are put by individuals and groups, describing the tactics available to the common man for reclaiming his own autonomy from the all-pervasive forces of commerce, politics, and culture. In exploring the public meaning of ingeniously defended private meanings, de Certeau draws brilliantly on an immense theoretical literature in analytic philosophy, linguistics, sociology, semiology, and anthropology--to speak of an apposite use of imaginative literature.

In medieval epistemology, self-examination is intimately tied to the search for a knowledge that transcends the self. Introspection can lead to intellectual and spiritual ascent. The “inward journey” of a poem like Piers Plowman is directed not only inward but also outward and upward, toward the external and transcendent. Self-exploration, however, is not universally depicted as leading to ascent: it is dangerous, beset by narcissistic traps, by the possibility that the self will seem an end sufficient to itself and become (...) the sole and ultimate object of its own attention. The medieval status of self-examination is, in other words, strongly ambivalent, as we see in treatments of that instrument of self-reflection par excellence, the mirror. The story of Narcissus and its cautionary lessons were well known to the later Middle Ages. But medieval authors had access not only to narcissistic mirrors. Holy Scripture and the ordered universe are mirrors reflecting the divine plan, and the self's place within that plan. The human soul is sometimes figured as a mirror in which God can be known. Looking in mirrors we see not only ourselves but a broad range of phenomena beyond the self. (shrink)

: This essay introduces a way of reading the Mengzi (Mencius) that complicates how we understand what Mengzi is recorded as saying. A pragmatic-strategic reading of the Mengzi is developed here, according to which Mengzi attends to and operates under important pragmatic constraints on speech. Based on a close reading of key passages, it is argued that truth-telling and descriptive accuracy are less important to Mengzi than guiding people along the Confucian path. This reading has implications for our understanding of (...) Mengzi’s philosophical positions and his methods of argumentation, as well as for our understanding of philosophical activity in general. (shrink)

Much progress has been made in recent years regarding the mechanisms of targeting of secretory proteins to, and across, the endoplasmic reticulum (ER) membrane. Many of the cellular components involved in mediating translocation across this bilayer have been identified and characterized. Polypeptide domains of secretory proteins, termed signal peptides, have been shown to be necessary, and in most cases sufficient, for entry of preproteins into the lumen of the ER. These NH2‐ terminal segments appear to serve multiple roles in targeting (...) and translocation. The structural features which mediate their multiple functions are currently the subject of intense study. (shrink)

Recent research on the cognitive abilities and emotional capacities of animals has fueled the animal rights movement and renewed debate over the differences between human and non-human animals. This debate has not been central to sociology, although George Herbert Mead drew a very hard line between humans and animals by asserting that the latter were not capable of symbolic interaction. Sociologists are now beginning to question this assumption, and this article falls within this new line of research. We begin by (...) presenting alternative interpretations of symbolic interaction that allow for the possibility of such activity in non-human animals. We review recent research on symbolic interaction between humans and dogs, and we present our own research findings on human-feline interaction. We conclude that there is growing evidence that symbolic interaction is widely distributed throughout the animal kingdom, and that it enables animals to survive more effectively in a wide variety of environments. (shrink)

This study explores the value of traditional ethnographic methods in sociology for the study of human-animal and animal-animal interactions and culture. Itargues that some measure of human-animal intersubjectivity is possible and that the method of participant observation is best suited to achieve this. Applying ethnographic methods to human-cat and cat-cat relationships in a no-kill cat shelter, the study presents initial findings; it concludes that the social structure of the shelter is the product of interaction both between humans and cats and (...) cats and cats and that the observed structure represents, to a large degree, choices made by the cats. The study also concludes that, within the cat community of the shelter, a distinctive cat culture has emerged, which represents the cats' adaptation to the particular conditions of shelter life. Specifically, the shelter allows for the emergence of higher order needs and goals that stress affection, friendship, and social cohesion among the cats rather than territoriality and conflict. The study further argues that traditional animal researchers have mistaken the relative equality of cat colonies for a lack of social structure, as opposed to a different structure from that found in sharply ranked nonhuman animal communities. (shrink)

Liberal democracy aims to treat all adult citizens as politically equal, at least in ideal cases: Once a citizen is over the age of majority, she is deemed a full-fledged member of the community and in theory has equal standing with all other adult citizens when it comes to making policy and participating in the political realm in general. I consider three questions: (1) Is there any plausible alternative to a standard "all adult citizens have equal political standing" model of (...) democracy that could be drawn from a specifically Confucian valuing of elder members of the community? (2) Insofar as there is a plausible alternative, what might it reveal about differences between how liberalism and Confucianism think of human selves as located in time? (3) What sort of difference would it make if the Confucian valuing of age were implemented via informal social norms, on the one hand, or via explicit institutional mechanisms and procedures, on the other? (shrink)