The world as we experience it is full of colour. This book defends the radical thesis that no physical object has any of the colours we experience it as having. The author provides a unified account of colour that shows why we experience the illusion and why the illusion is not to be dispelled but welcomed. He develops a pluralist framework of colour-concepts in which other, more sophisticated concepts of colour are introduced to supplement the simple concept that is presupposed (...) in our ordinary colour experience. The discussion draws on philosophical and scientific literature, both historical and modern, but it is not technical, and will appeal to a broad range of philosophers, cognitive scientists and historians of science. (shrink)

The world as we experience it is full of colour. This book defends the radical thesis that no physical object has any of the colours we experience it as having. The author provides a unified account of colour that shows why we experience the illusion and why the illusion is not to be dispelled but welcomed. He develops a pluralist framework of colour-concepts in which other, more sophisticated concepts of colour are introduced to supplement the simple concept that is presupposed (...) in our ordinary colour experience. The discussion draws on philosophical and scientific literature, both historical and modern, but it is not technical, and will appeal to a broad range of philosophers, cognitive scientists and historians of science. (shrink)

Despite the fact about colour, that it is one of the most obvious and conspicuous features of the world, there is a vast number of different theories about colour, theories which seem to be proliferating rather than decreasing. How is it possible that there can be so much disagreement about what colours are? Is it possible that these different theorists are not talking about the same thing? Could it be that more than one of them is right? Indeed some theorists, (...) e.g. Leo M. Hurvich, D. L. McAdam and K. Nassau, say that the term ‘colour’ is used to identify a range of different properties, e.g. pigments, properties of light, and sensations. Such a view has its attractions, but it raises the question of what it is that unites these various concepts – what is it that would make them all concepts of colour? What is it that justifies using the same terms, ‘yellow’, ‘blue’, ‘pink’, mauve’, and so on?This paper aims to address this question, arguing that its answer supports the conclusion that the best theory of colour is a form of anti-realism: the Illusory theory of colours. There are two parts to this thesis, one negative, the other positive. The negative part is that there are no colours, as they are ordinarily conceived. The positive part is that, nevertheless, the world is such that ‘it is as if there are such colours’. Such a theory has important implications. One is that it doesn’t fall neatly into the usual taxonomy of philosophical theories. In particular, it does not deserve the label ‘eliminativist’. Another is that it allows some space for the views expressed by Hurvich, McAdam and Nassau, but not quite in the sense that they intend. (shrink)

This book defends the radical thesis that no physical object has any of the colours we experience it as having.

Colors are of philosophical interest for two kinds of reason. One is that colors comprise such a large and important portion of our social, personal and epistemological lives and so a philosophical account of our concepts of color is highly desirable. The second reason is that trying to fit colors into accounts of metaphysics, epistemology and science leads to philosophical problems that are intriguing and hard to resolve. Not surprisingly, these two kinds of reasons are related. The fact that colors (...) are so significant in their own right, makes more pressing the philosophical problems of fitting them into more general metaphysical and epistemological frameworks. (shrink)

The philosophical issues raised by perception make it one of the central topics in the philosophical tradition. Debate about the nature of perceptual knowledge and the objects of perception comprises a thread that runs through the history of philosophy. In some historical periods the major issues have been predominantly epistemological and related to scepticism, but an adequate understanding of perception is important more widely, especially for metaphysics and the philosophy of mind. For this reason Barry Maund provides an account (...) of the major issues in the philosophy of perception that highlights the importance of a good theory of perception in a range of philosophical fields, while also seeking to be sensitive to the historical dimension of the subject. The work presents chapters on forms of natural realism; theories of perceptual experience; representationalism; the argument from illusion; phenomenological senses; types of perceptual content; the representationalist/intentionalist thesis; and adverbialist accounts of perceptual experience. The ideas of, among others, Austin, Dretske, Heidegger, Millikan, Putnam and Robinson are considered and the reader is given a philosophical framework within which to consider the issues. (shrink)

The book includes chapters on forms of natural realism, theories of perceptual experience, representationalism, the argument from illusion, phenomenological senses, types of perceptual content, the representationalist/intentionalist thesis, and adverbialist accounts of perceptual experience. The ideas of Austin, Dretske, Heidegger, Millikan, Putnam, and Robinson are considered among others and the reader is given an invaluable philosophical framework within which to consider the issues.

The Parmenides is notorious for the criticisms it directs against Plato's own Theory of Forms, as presented in the middle period. But the second and major portion of the dialogue has generally been avoided, despite its being offered as Plato's response to the problems; the text seems intractably obscure, appearing to consist of a series of bad arguments leading to contradictory conclusions. Carefully analyzing these arguments and the methodological remarks which precede them, Meinwald shows that to understand Plato's response we (...) need to recognize his important distinction between two kinds of predication. Read in the light of this distinction, the arguments can be seen to be sound, and the contradictions merely apparent. Meinwald then proceeds to demonstrate the direct application of Plato's crucial innovation in solving the problems of the first part of the dialogue, including the infamous Third Man. On Meinwald's interpretation, the new distinction is associated with developments in metaphysics which take Plato well beyond the problems commonly thought to tell against Platonism. (shrink)

In this outstanding introduction, Constance Meinwald covers all of Plato's philosophy and shows how he shaped the landscape of Western philosophy. Beginning with a helpful overview of what is known about Plato's life and times, she clearly explains and assesses Plato's fundamental arguments and ideas. These include the importance of Plato's view of what philosophy is and the distinctive way in which his most important arguments are presented in dialogues; his theories of ethics addressed through the fundamental and enduring (...) questions happiness and virtue; his influential treatments of the soul and immortality; the lasting contributions he made to the study of metaphysics and the nature of knowledge through his theory of the Forms; and his enduring and controversial insights into political and social thought in the context of his theories of human nature. Throughout, Constance Meinwwald draws expertly on Plato's most important dialogues to present a thorough and lively picture of his philosophy. Essential reading for students of ancient philosophy and Classics, Plato is an ideal introduction to arguably the greatest of all Western philosophers. (shrink)

This paper argues for a view that maximizes in the Stoics' epistemology the starkness and clarity characteristic of other parts of their philosophy. I reconsider our evidence concerning doxa (opinion/belief): should we really take the Stoics to define it as assent to the incognitive, so that it does not include the assent of ordinary people to their kataleptic impressions, and is thus actually inferior to agnoia (ignorance)? I argue against this, and for the simple view that in Stoicism assent is (...) either, in the case of the fool, doxa = agnoia, or alternatively, in that of the sage, epistêmê (knowledge). This view, together with reflection on the appropriate sense of "between" in the relevant reports of SE and Cicero, yields a sympathetic reading of an otherwise problematic challenge Sextus reports Arcesilaus as having prepared for the Stoic claim that katalêpsis, which is the criterion of truth, is between knowledge and opinion; on my view each side is proceeding in a philosophically legitimate way. (shrink)

Although neglected by psychology, self-respect has been an integral part of philosophical discussion since Aristotle and continues to be a central issue in contemporary moral philosophy. Within this tradition, self-respect is considered to be based on one's capacity for rationality and leads to behaviors that promote autonomy, such as independence, self-control and tenacity. Self-respect elicits behaviors that one should be treated with respect and requires the development and pursuit of personal standards and life plans that are guided by respect for (...) self and others. In contrast, the psychological concept of self-esteem is grounded in the theories of self-concept. As such, self-esteem is a self-evaluation of competency ratios and opinions of significant others that results in either a positive or negative evaluation of one's worthiness and inclusionary status. The major distinction between the two is that while competency ratios and others' opinions are central to self-esteem, autonomy is central to self-respect. We submit that not only is self-respect important in understanding self-esteem, but that it also uniquely contributes to individual functioning. Research is needed to establish the central properties of self-respect and their effects on individual functioning, developmental factors, and therapeutic approaches. (shrink)

Despite the fact about colour, that it is one of the most obvious and conspicuous features of the world, there is a vast number of different theories about colour, theories which seem to be proliferating rather than decreasing. How is it possible that there can be so much disagreement about what colours are? Is it possible that these different theorists are not talking about the same thing? Could it be that more than one of them is right? Indeed some theorists, (...) e.g. Leo M. Hurvich, D. L. McAdam and K. Nassau, say that the term ‘colour’ is used to identify a range of different properties, e.g. pigments, properties of light, and sensations. Such a view has its attractions, but it raises the question of what it is that unites these various concepts – what is it that would make them all concepts of colour? What is it that justifies using the same terms, ‘yellow’, ‘blue’, ‘pink’, mauve’, and so on?This paper aims to address this question, arguing that its answer supports the conclusion that the best theory of colour is a form of anti‐realism: the Illusory theory of colours. There are two parts to this thesis, one negative, the other positive. The negative part is that there are no colours, as they are ordinarily conceived. The positive part is that, nevertheless, the world is such that ‘it is as if there are such colours’. Such a theory has important implications. One is that it doesn’t fall neatly into the usual taxonomy of philosophical theories. In particular, it does not deserve the label ‘eliminativist’. Another is that it allows some space for the views expressed by Hurvich, McAdam and Nassau, but not quite in the sense that they intend. (shrink)

Local knowledge (both technological and sociological) and communication systems represent a logical starting point and a rich body of resources for successful agricultural research, development, and extension (RD&E). Drawing upon concrete examples from Asia, Africa, and Latin America, this essay presents an overview of definitions, topics, and applications of local knowledge in agricultural RD&E. Also noted are caveats, future research and training needs, and human values issues related to the study and utilization of local knowledge systems and their products.

Higher education has not been spared from the effects of the disruptive aspects of technology. MOOCs, teach bots, virtual learning platforms, and Wikipedia are among technics marking a digi...

Applying social construction theory to the study of other animals, this article reports research conducted on ecotourist constructions of orangutans. Two "stories" dominated: Orangutan as Child and Orangutan as Pristine. The cultural and historical specificity of these constructs as well as their implications for conservation are discussed.

Religion and spirituality seem to be very important for HIV-positive patients believers. Indeed, a recurring number of studies show strong correlations between religiosity/spirituality of individuals and different dimensions of health. The majority of these studies show most positive associations of religiosity/spirituality to physical health through reducing emotional distress, reduced rates of depression, greater optimism, better psychological adjustment, better preservation of CD4 cells, better control of viral load. The objective of this research is to understand the nature of the relationship between (...) religiosity and emotional health among HIV-positive patients, migrants from sub-Saharan Africa. Religiosity, the frequency of depressive episodes and subjective health 81 asymptomatic HIV patients regularly followed, were evaluated. Regression models and mediation, backed by a resampling procedure were tested. From mediation analyzes, the results show that through the mediating effect of subjective health, religiosity explains a decrease in the number of depressive episodes in people with HIV migrants from sub-Saharan Africa. (shrink)

In this paper I wish to propose and defend a form of the Representative Theory of Perception. According to this version of the theory, when a subject perceives some object x to be in a state P1 he does so by being aware of some modfication M1 of some object E. The subject's way of perceiving any one of a range of objects x,y,z, … is that of being aware of some modification of E. It will be a necessary condition (...) of someone's perceiving x to have property P1 that E be modified in some way. And in order for the modifications of E to be representations, a given property P1 will need to be causally related, characteristically, to one or more specific modifications, M1,M2, … Mn, of E. symbolized by ‘X'.). (shrink)

Four hundred seventy-six nuclear power plants are in operation or under construction around the world. Are concepts for designing and operating plants safely sufficient? Conventional approaches are premised on expectations of predictability and control of radiation release and on assumptions that plant operations are closed systems. Field observations in the industry find, however, that the periodic necessity to refuel, test safety equipment, and continuously upgrade plant designs introduces challenges to control not originally calculated. The social and cultural contexts of markets, (...) regulation, and work systems create additional contingencies. In this dynamic environment, reactor operations produce invaluable data about the states of the entire technology and organizational system. Rereading these dynamics as "experiments" suggests an alternative epistemol ogy that synthesizes science's values of doubt, discovery, and documentation with engineering's values of efficiency, optimization, and problem solving. This redefines plant-based risk handlers as ethologists, geologists, and anthropologists of an ecology of visible and invisible hazards. (shrink)

In this paper I wish to propose and defend a form of the Representative Theory of Perception. According to this version of the theory, when a subject perceives some object x to be in a state P1 he does so by being aware of some modfication M1 of some object E. The subject's way of perceiving any one of a range of objects x,y,z, … is that of being aware of some modification of E. It will be a necessary condition (...) of someone's perceiving x to have property P1 that E be modified in some way. And in order for the modifications of E to be representations, a given property P1 will need to be causally related, characteristically, to one or more specific modifications, M1,M2, … Mn, of E. symbolized by ‘X'.). (shrink)

The Madhyamaka school of Buddhist philosophy is grounded in the theory of the two truths. This theory posits the existence of two levels of reality :1 the conventional truth corresponds to the way that things appear, and the ultimate truth corresponds to the way that things really are. Nāgārjuna, the second-century Indian scholar credited with founding the Madhyamaka tradition, frames the relationship between the two truths as follows: "Without relying on the conventional, the ultimate cannot be demonstrated. Without understanding the (...) significance of the ultimate, liberation is not achieved."2 In other words, the goal of Buddhist practice—liberation—relies on a correct... (shrink)

Dans cet article, la pairepros ta alla/pros heautodans leParménidede Platon est analysée dans les termes d’une distinction entre la prédication ordinaire (où un individu présente une qualité) et la prédication en arborescence (fondée sur la relation qui s’établit entre un X et un Y lorsque la nature X fait partie de la nature Y). J’engage une discussion avec mes critiques en soutenant que cette interprétation donne tout leur sens aux remarques méthodologiques de Platon, tout en rendant son argumentation plus efficace. (...) LeParménidefait le pont entre les dialogues de maturité et les développements techniques des derniers dialogues de Platon. (shrink)