Reaction-diffusion systems which have reaction term satisfying f(-q) = -f(q) tend strongly to form striped patterns. Haken’s slaving principle is used to derive differential equations for unstable mode amplitudes close to the Turing instability. This connects a dynamical symmetry to pattern selection, with possible relevance to biological and chemical pattern-forming phenomena.

Ross Harrison; IV*—Discounting the Future, Proceedings of the Aristotelian Society, Volume 82, Issue 1, 1 June 1982, Pages 45–58, https://doi.org/10.1093/aristo.

Jonathan Harrison; III*—The Embodiment of Mind or What Use is Having a Body?, Proceedings of the Aristotelian Society, Volume 74, Issue 1, 1 June 1974, Pages 35.

Jonathan Harrison; IX—The Third Dimension, Proceedings of the Aristotelian Society, Volume 61, Issue 1, 1 June 1961, Pages 151–168, https://doi.org/10.1093/aris.

Bernard Harrison; XIII—Meaning and Mental Images, Proceedings of the Aristotelian Society, Volume 63, Issue 1, 1 June 1963, Pages 237–250, https://doi.org/10.10.

How old are you? The more thought you bring to bear on the question, the harder it is to answer. For we age simultaneously in different ways: biologically, psychologically, socially. And we age within the larger framework of a culture, in the midst of a history that predates us and will outlast us. Looked at through that lens, many aspects of late modernity would suggest that we are older than ever, but Robert Pogue Harrison argues that we are also (...) getting startlingly younger—in looks, mentality, and behavior. We live, he says, in an age of juvenescence. Like all of Robert Pogue Harrison's books, _Juvenescence_ ranges brilliantly across cultures and history, tracing the ways that the spirits of youth and age have inflected each other from antiquity to the present. Drawing on the scientific concept of neotony, or the retention of juvenile characteristics through adulthood, and extending it into the cultural realm, Harrison argues that youth is essential for culture’s innovative drive and flashes of genius. At the same time, however, youth—which Harrison sees as more protracted than ever—is a luxury that requires the stability and wisdom of our elders and the institutions. “While genius liberates the novelties of the future,” Harrison writes, “wisdom inherits the legacies of the past, renewing them in the process of handing them down.” A heady, deeply learned excursion, rich with ideas and insights, _Juvenescence_ could only have been written by Robert Pogue Harrison. No reader who has wondered at our culture's obsession with youth should miss it. (shrink)

Lucas van Valckenborch’s Winter Landscape hangs in the Kinsthistorisches Museum in Vienna. It was painted four hundred years ago as one of a set of the four seasons. Measured by sales of reproductions, it is one of the most popular paintings in the museum, though it is by no means the most distinguished example of the genre to which it belongs. The picture is a snow scene. In the long series of represented planed that recede from foreground to horizon, fallen (...) snow covers fields and roves. Across the surface of the canvas and scarcely diminishing in scale from bottom to top, touches of white paint represent falling snow. It is not a small painting, and these are not mere feathery indications, but palpable dabs from a loaded brush. To a taste fed on Modernist painting—or, for the pedantic, to a prejudice fuelled by Modernist accounts of painting—it is by virtue of this surprising frankness that the painting achieves more than mere anecdotal charm. It is not the illusion of depth in the picture that holds our sophisticated attention, nor the atmospheric re-creation of a leaden sky, nor do we admit to being engaged by the over-rehearsed animation of the peasants. What gives us pleasurable pause is the strange and distinctive form of skepticism about appearances that is set in play when the allure of imaginative depth meets resistance from the vividness of decorated surface.5 5. Wollheim uses the term ‘twofoldness’ for ‘this strange duality—of seeing the marked surface, and of seeing something in the surface.’ In his account this experience leads to a thematizing of the image, which ‘ushers in representation.’ Translated into his terminology, my suggestion would be that the Winter Landscape can be seen as catering to a Modernistic taste for the thematizing of ‘twofoldness’ itself. Charles Harrison is staff tutor and reader in the history of art at the Open University. He is the author of English Art and Modernism 1900-1939 , and he is now completing a second volume, English Art and Modernism 1940-1985. He is co-author of A Provisional History of Art & Language , and his most recent book—Essays on Art and Language—is due out in 1989. He has been associated with the Art & Language group since 1971 and is editor of the journal Art-Language. (shrink)

During the latter half of the thirteenth century there arose around Tuscany a strange and unprecedented poetry, erudite, abstract, and arrogantly intellectual. It sang beyond courtly conventions about the wonders of the rational universe whose complex secrets the new speculative sciences were eagerly systematizing. Appropriating the language of natural philosophy, Aristotelian psychology, and even theology, love poetry developed a new theoretical understanding of its enterprise which allowed it to redefine love as spiritualized search for knowledge. This intellectualization of erotic desire (...) culminates in the Florentine sitlnovisti, a handful of learned poets who turned love poetry into an eclectic philosophical affair. Guido Cavalcanti’s famous canzone “Donna me prega” was universally considered to be not only the technically most perfect canzone ever written but also a rigorous philosophical treatise. As much as in our own day, exegeses of the poem were forced into the arcana of Scholastic Aristotelianism in order to make sense of its abstract, psychologistic definition of love’s essence. While Cavalcanti lyricized an Averroistic logic of the unified intellect, his younger friend Dante was preparing to put all of medieval philosophy, theology, and science into terza rima. It was in this terza rima that medieval Paris found perhaps its most felicitous expression, for the Divine Comedy represents, among other things, a creative transfiguration of the critical discourses Paris was diffusing throughout Europe.What recalls that situation today is the way Paris again marks the center of critical thought, while in Italiy a new generation of poets has emerged that translates the lessons of contemporary philosophy into poetry. In this essay I plan to discuss some of the most radical or, by analogy, “stilnovistic” of these lyricists. For purposes of convenience I will refer to them as the “favorite malice” poets. The phrase comes from the title of an anthology of select contemporary Italian poetry, recently published in a bilingual English edition: The Favorite Malice: Ontology and Reference in Contemporary Italian Poetry.2 The title alludes to a passage of Friedrich Nietzsche: “It is my favorite malice and art that my silence has learned not to betray itself through silence.” These words from Thus Spoke Zarathrustra serves as the anthology’s epigraphs and signal the peculiar poetics that brings the poets together in one volume. They are not brought together as a “school” but as a loose convergence of individual practices. The most illustrious name among the group is that of Andrea Zanzotto , who belongs to an older generation but whom the other poets call their “youngest traveling companion.” The “older” companions include Nanni Cagnone, Luigi Ballerini, Raffaele Perrotta, and Angelo Lumelli. Robert P. Harrison is assistant professor of Italian at Stanford University. He has published a book of poems, The Murano Workshop , and articles on Dante, Kierkegaard, Nietzsche, and liberal philology. The Body of Beatrice is the title of his work in progress. (shrink)

The American Journal of Bioethics, Volume 11, Issue 11, Page 42-43, November 2011.

Excerpt from John Stuart Mill Not only is the language of the Liberty somewhat vague in defining the respective limits of 'persuasion and 'coer cion, ' but the practical illustrations of lawful restrictions by the State seem at times hardly consistent with so abso lute a doctrine. It is somewhat startling, after such tren chant assertion of the absolute freedom of the individual. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com (...) This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works. (shrink)

Explores the theories of the development of shape and size in living organisms and offers an exposition of the kinetic theory of shape.

Individuals typically resist changing their minds, but support for same-sex marriage increased from 35% to 61% between 2006-2016. What explains this anomaly?

This paper analyses the cognitive image schemas structuring the ontological commitments of dominant conceptions of ethics and economics to show that the content of economics is implicated in conceptions of ethics, and that these conceptions cannot be separated from questions of research and professional ethics. This analysis of the metaphoric structuring of the ontological commitments of ethics and economics is based on an extension of Kuhn's construct sense of 'paradigm' as concrete analogy; and on techniques of metaphoric analysis developed in (...) cognitive linguistics. Analysis of the iconic and schematic representations of the concrete analogies and idealised cognitive models structuring economic and ethical theories expose both shared and conflicting ontological commitments. Read the Open Peer Discussion on this paper ». (shrink)

Principia Mathematica was the first sustained and successful formalization of mathematics.