Upshot: Poerksen’s discursive constructivism reconstructs radical constructivist foundations and applies them to several subjects of research in the field of journalism and media studies. The author combines epistemological arguments with practical advice for journalists, which makes the book not only valuable for interested followers of RC in general but also for communication scientists and media practitioners.

Social constructivists maintain that we invent the properties of the world rather than discover them. Is reality constructed by our own activity? Or, more provocatively, are scientific facts--is everything --constructed? Social Constructivism and the Philosophy of Science is a clear assessment of this critical and increasingly important debate. Andre Kukla presents a comprehensive discussion of the philosophical issues involved and analyzes the strengths and weaknesses of a range of constructivist arguments, illustrating the divide between the sociology and the (...) philosophy of science through examples as varied as laboratory science, time, and criminality. He argues that current philosophical objections to constructivism are drastically inconclusive, while offering and developing new objections. Throughout, Kukla distinguishes between the social causes of scientific beliefs and the view that all ascertainable facts are constructed. (shrink)

What is the nature of human well-being? This paper joins the ancient debate by rejuvenating an ancient claim that is quite unfashionable among moral philosophers today, namely, the Aristotelian claim that moral virtue is (non-instrumentally) necessary for human well-being. Call it the Aristotelian Virtue Condition (AVC). This view can be revived for contemporary debate by a state-of-the-art approach that we might call constructivist experimental philosophy, which takes as its goal the achievement of a reasonable constructivist account of well-being and (...) takes the investigation of actual folk intuitions as the central means to achieving that goal. The paper motivates this approach and challenges the commonplace philosophical rejection of AVC by arguing (1) that folk intuitions should count as evidence in the debate, especially if we aim at a constructivist account of well-being, (2) that folk intuitions can be accurately elicited through a thought experiment (the “Crib Test”), and (3) that there is some reason (subject to experimental confirmation) for thinking that folk intuitions, thus elicited, support AVC. Aristotelian ethics, and indeed the entire virtue ethics tradition, has come under fire recently by empirically informed philosophers who question the empirical adequacy of the postulation of robust character traits, but regardless of how that debate turns out, other parts of this tradition might be empirically supported rather than undermined. This paper sketches a promising, empirically informed way of supporting Aristotelian views of well-being. (shrink)

The idea to produce the current volume was conceived by Jiirgen Mittelstrass and Robert E. Butts in 1978. Idealist philosophers are wrong about one thing: the temporal gap separating idea and reality can be very long indeed - even ten or so years! Problems of timing were joined by personal problems and by the pressure of other professional commitments. Fortunately, James Brown agreed to cooperate in the editing of the volume; the infusion of his usual energy, good judgement and good-natured (...) promptness saved the volume and made its produc tion possible. Despite the delays, the messages of the papers included in the book have not gone stale. An extremely worthwhile exercise in international philosophical cooperation has come to fruition; the German constructivist philosophical position is here represented in papers in English that will make its contemporary importance available to a larger audience. The editors owe thanks to many persons. All involved in the project owe much to the interest and support of Nicholas Rescher, a friend of the undertaking from the time of its inception. My review of the translations was helped immensely by Andrea Purvis' careful copy editing of the typescript. Most of all, however, we owe gratitude and admiration for the tireless efforts on behalf of this enterprise to Jiirgen Mittelstrass. (shrink)

Social constructionists maintain that we invent the properties of the world rather than discover them. Is reality constructed by our own activity? Do we collectively invent the world rather than discover it? André Kukla presents a comprehensive discussion of the philosophical issues that arise out of this debate, analysing the various strengths and weaknesses of a range of constructivist arguments and arguing that current philosophical objections to constructivism are inconclusive. However, Kukla offers and develops new objections to constructivism, (...) distinguishing between the social causes of scientific beliefs and the view that all ascertainable facts are constructed. (shrink)

Extends the ideas of social constructivism to the philosophy of mathematics, developing a powerful critique of traditional absolutist conceptions of mathematics, and proposing a reconceptualization of the philosophy of mathematics.

This volume presents twelve original papers on the idea that moral objectivity is to be understood in terms of a suitably constructed social point of view that all can accept.

The dissertation studies the mathematical strength of strict constructivism, a finitistic fragment of Bishop's constructivism, and explores its implications in the philosophy of mathematics. ;It consists of two chapters and four appendixes. Chapter 1 presents strict constructivism, shows that it is within the spirit of finitism, and explains how to represent sets, functions and elementary calculus in strict constructivism. Appendix A proves that the essentials of Bishop and Bridges' book Constructive Analysis can be developed within (...) strict constructivism. Appendix B further develops, within strict constructivism, the essentials of the functional analysis applied in quantum mechanics, including the spectral theorem, Stone's theorem, and the self-adjointness of some common quantum mechanical operators. Some comparisons with other related work, in particular, a comparison with S. Simpson's partial realization of Hilbert's program, and a discussion of the relevance of M. B. Pour-El and J. I. Richards' negative results in recursive analysis are given in Appendix C. ;Chapter 2 explores the possible philosophical implications of these technical results. It first suggests a fictionalistic account for the ontology of pure mathematics. This leaves a puzzle about how truths about fictional mathematical entities are applicable to science. The chapter then explains that for those applications of mathematics that can be reduced to applications of strict constructivism, fictional entities can be eliminated in the applications and the puzzle of applicability can be resolved. Therefore, if strict constructivism were essentially sufficient for all scientific applications, the applicability of mathematics of mathematics in science would be accountable. The chapter then argues that the reduction of mathematics to strict constructivism also reduces the epistemological question about mathematics to that about elementary arithmetic. The dissertation ends with a suggestion that a proper epistemological basis for arithmetic is perhaps a mixture of Mill's empiricism and the Kantian views. (shrink)

While Kantian constructivism has become one of the most influential and systematic schools of thought in analytic moral and political philosophy, Hegelian approaches to practical normativity hold out the promise of building upon Kantian insights into individual self-determination while avoiding their dualistic tendencies. James Gledhill and Sebastian Stein unite distinguished scholars of German idealism and contemporary Anglophone practical philosophy with rising stars in the field, to explore whether Hegelian idealist philosophy can offer the categories that analytic (...) practical philosophy requires to overcome the contradictions that have so far plagued Kantian constructivism. The volume organizes the contributions into three parts. The first of these engages debates in metaethics regarding the relationship between realism and constructivism. The second part sees contributors draw on debates about the nature of political normativity, focusing primarily on the problems of historical contextualism, relativism, and critical reflection. The concluding part considers the application of the Hegelian framework to contemporary debates about specific ethical issues, including multiculturalism, democracy, and human rights. Hegel and Contemporary Practical Philosophycontributes to the on-going debate about the importance of systematic philosophy in the context of practical philosophy, engages with contemporary discussions about the shape of a rational social order, and gauges the timeliness of Hegelian philosophy. This book is a must read for scholars interested in Hegel and in the contemporary tradition of Kantian constructivism in moral and political philosophy. (shrink)

Onora O’Neill has contributed enormously to moral philosophy (broadly speaking, including both ethics and political philosophy) by identifying Kant’s unique and powerful form of normative constructivism. Frederick Neuhouser has contributed similarly by showing that all of Hegel’s standards of moral rationality aim to insure the complete development of three distinct, complementary forms of personal, moral and social freedom. However, Neuhouser’s study does not examine Hegel’s justificatory methods and principles. The present article aims to reinforce and extend Neuhouser’s (...) findings by explicating Hegel’s basic principles for justifying practical norms. Surprisingly, Hegel’s basic principles of normative justification are rooted in Kant’s constructivism, as explicated by O’Neill. Hegel’s adaptation and development of Kant’s constructivism results in a powerful form of constructivism about moral principles which merits contemporary interest because it is more powerful and more objectivist than familiar contemporary forms of constructivism. (Slightly revised English translation by the author of „Objektive Gültigkeit zwischen Gegebenem und Gemachtem. Hegels kantischer Konstruktivismus in der praktischen Philosophie“). (shrink)

In this paper I trace the development of one of the central debates of late twentieth-century moral philosophy—the debate between realism and what Rawls called “constructivism.” Realism, I argue, is a reactive position that arises in response to almost every attempt to give a substantive explanation of morality. It results from the realist’s belief that such explanations inevitably reduce moral phenomena to natural phenomena. I trace this belief, and the essence of realism, to a view about the nature (...) of concepts—that it is the function of all concepts to describe reality. Constructivism may be understood as the alternative view that a normative concept refers schematically to the solution to a practical problem. A constructivist account of a concept, unlike a traditional analysis, is an attemptto work out the solution to that problem. I explain how the philosophies of Kant and Rawls can be understood on this model. (shrink)

We set forth what one may call a “constitutional reading” in opposition to the traditional widespread “constructivist reading” of the object of cognition. In the light of the so-called one-object view reading of Transcendental idealism, the object of cognition is nothing but the object that exists in itself insofar as it appears to our cognitive apparatus. The object exists mind-independently, while our cognition of the same object must be mind-independent. The constructivist reading mistakes the epistemological problem of how we come (...) to cognize mind-dependently that what we represent (“the constitutional view”) are mind-independent objects with the Berkelian ontological problem of how we construct objects out of an undifferentiated, unstructured manifold (the constructivist view) My diagnosis is as follows. The first reason is the traditional “two-worlds view” reading of Kant’s idealism. If we take what exists in itself and the object of cognition as distinct things, then we must conclude that the object of cognition is a mind-dependent construction. Constructivist readers mistake the mind-dependent nature of our human cognition of objects for the putative mind-dependent nature of the known object. The second reason is overintellectualization. Constructivist readers mistake the objectifying syntheses of the imagination, below the threshold of self-consciousness, for cognitive conceptual operations by means of which we cognize (erkennen) the objects of cognition, or so I shall argue. (shrink)

Jacques Rancire's theory of the sensible is an attempt to frame and secure the relationship between politics and aesthetics, art and design on the same surface. Accordingly, the reconstruction of the sensible appearances of the world of the built environment, of the dcor of the sensible, as Rancire describes it is more than the negation of bourgeois appearances in the name of either a radical aesthetics or a radical politics; it is, rather, the common invention of sensible forms and material (...) structures for a life to come. In this respect Rancire's theory has much in common with the historic avant-garde. Following the constructivism of Rodchenko and El Lissitsky, representation here is not just the symbolic life of pictures, but the very materiality of things and their relations. Yet Rancire has little time for the active politicization of art, insofar this destroys, he asserts, the potential democracy of art. This leaves his constructivism in a weakened critical position. This essay explores the hiatuses and limitations of Rancire's cultural theory. (shrink)

Chapter Growing up Constructivist: Languages and Thoughtful People What is radical constructivism? It is an unconventional approach to the problems of ...

John Rawls's form of constructivism can easily be ramped up into a fullblown metaethics. In this chapter, the author explores an alternative interpretive framework, which basically inverts the roles that the construction of the original position and the reliance on reflective equilibrium play in Rawls's argument. The author sketches out the basic contours of Rawls's thinking if we treat constructivism as his method for theory construction and reflective equilibrium as his metaethics. Metaethics is clearly a part of moral (...) philosophy outside of moral theory. At every major turn in the articulation of Rawls's theory there is a new or more developed account of reflective equilibrium and in particular its justificatory role in the theory. Giving one's argument a form that allows it to more easily appeal to a particular audience, is the job of rhetoric. So it turns out that constructivism is not a metaethical position, but a rhetorical strategy. (shrink)

This chapter discusses some main traits of classical Pragmatism and their potential as critical tools for contemporary discussions about Pragmatism and constructivism. It first examines some of the claims advanced in Stefan Neubert's essay “Pragmatism and Constructivism in Contemporary Philosophical Discourse”. It then explores the vitality of Pragmatist thought and the usefulness of its basic tenets as resources for philosophic criticism. The chapter looks into the problems of “cognitive relativism” in postmodern and neo-Pragmatist discourses. From this standpoint the (...) chapter raises critical questions for the Cologne program of interactive constructivism. It argues for a strong rearticulation of Dewey's instrumentalism and experimentalism and emphasizes its relevancy for the current situation. (shrink)

Are there such things as moral truths? How do we know what we should do? And does it matter? Constructivism states that moral truths are neither invented nor discovered, but rather are constructed by rational agents in order to solve practical problems. While constructivism has become the focus of many philosophical debates in normative ethics, meta-ethics and action theory, its importance is still to be fully appreciated. These new essays written by leading scholars define and assess this new (...) approach in ethics, addressing such questions as the nature of constructivism, how constructivism improves our understanding of moral obligations, how it accounts for the development of normative practices, whether moral truths change over time, and many other topics. The volume will be valuable for advanced students and scholars of ethics and all who are interested in questions about the foundation of morality. (shrink)

Constructivism is at the heart of a pedagogical philosophy going back to Vico, whose view of the interrelationship of the arts and sciences sought to reconstitute the classical paideia. The Vichian idea that human beings can only know the truth of what they themselves have made has theoretical and practical consequences for Vico's pedagogy and view of the university. Vico's ideas on education are extended in the modern period by such thinkers as Cassirer, Piaget and Bateson. At the (...) basis of Cassirer's pedagogical philosophy is his theory of the symbol, the symbol being a universal and transcendent modality in culture. The result of this unifying theory is that symbolism, which is pervasive across the disciplines, provides a moral and ethical means for integrating communication about teaching. Cassirer's thought is compatible with Piaget's, which emphasizes the pluralism of experience and the role of dynamic learning in the construction of meaningful order. Piaget's constructivism assumes that an operational bridge exists to link together the hard sciences, the human sciences, and the historical disciplines. This systems view of epistemological matters is similar in many respects to the one advanced by Gregory Bateson, which is explored in the paper's final section. (shrink)

Since the appearance of Hayden White's seminal work Metahistoryin 1973, constructivist thought has been a key force within theory of history and has at times even provided inspiration for historians more generally. Despite the radical theoretical shift marked by constructivism and elaborated in detail by its proponents, confusion regarding many of its practical and ethical consequences persists, however, and its position on truth and meaning is routinely misconstrued. To remedy this situation, The Work of Historyseeks to mediate between constructivist (...) theory and history practitioners' intuitions about the nature of their work, especially as these relate to the so-called fact-fiction debate and to the literary challenges involved in the production of historical accounts. In doing so, the book also offers much-needed insight into debates about our experiential relations with the past, the political use of history and the role of facts in the contestation of power. (shrink)

Review of Constructivism in Practical Philosophy, edited by James Lenman and Yonatan Shemmer.

Metaethical constructivism is the view that insofar as there are normative truths, they are not fixed by normative facts that are independent of what rational agents would agree to under some specified conditions of choice. The appeal of this view lies in the promise to explain how normative truths are objective and independent of our actual judgments, while also binding and authoritative for us. -/- Constructivism comes in several varieties, some of which claim a place within metaethics while (...) others claim no place within it at all. In fact, constructivism is sometimes defended as a normative theory about the justification of moral principles. Normative constructivism is the view that the moral principles we ought to accept are the ones that agents would agree to or endorse were they to engage in a hypothetical or idealized process of rational deliberation. -/- Metaethical constructivist theories aim to account for the nature of normative truths and practical reasons. They bear a problematic relation to traditional classifications of metaethical theories. In particular, there are disagreements about how to situate constructivism in the realism/antirealism debate. These disagreements are rooted in further differences about the definition of metaethics, the relation between normative and metaethical claims, and the purported methods pertinent and specific to metaethical inquiry. The question of how to classify metaethical constructivism will be addressed in what follows by focusing on the distinctive questions that constructivist theories have been designed to answer. Section 1 explains the origin and motivation of constructivism. Sections 2–4 examine the main varieties of metaethical constructivism. Section 5 illustrates related constructivist views, some of which are not proposed as metaethical accounts of all normative truths, but only of moral truths. Sections 6 and 7 review several debates about the problems, promise and prospects of metaethical constructivism. (shrink)

Constructivism is one of the most influential theories in contemporary education and learning theory. It has had great influence in science education. The papers in this collection represent, arguably, the most sustained examination of the theoretical and philosophical foundations of constructivism yet published. Topics covered include: orthodox epistemology and the philosophical traditions of constructivism; the relationship of epistemology to learning theory; the connection between philosophy and pedagogy in constructivist practice; the difference between radical and social (...) class='Hi'>constructivism, and an appraisal of their epistemology; the strengths and weaknesses of the Strong Programme in the sociology of science and implications for science education. The book contains an extensive bibliography. Contributors include philosophers of science, philosophers of education, science educators, and cognitive scientists. The book is noteworthy for bringing this diverse range of disciplines together in the examination of a central educational topic. (shrink)

In this work, I discuss the role of Husserl’s phenomenology in Paolo Parrini’s positive philosophy. In the first section, I highlight the presence of both empiricist and constructivist elements in Parrini’s anti-foundationalist and anti-absolutist conception of knowledge. In the second section, I stress Parrini’s acknowledgement of the crucial role of phenomenology in investigating the empirical basis of knowledge, thanks to its analysis of the relationship between form and matter of cognition. In the third section, I point out some lines (...) of development of the phenomenological form of empirical realism as revealed in Parrini’s reflection, through a comparison of Husserl’s genetic phenomenology, Mary Hesse’s network model and the tradition of neutral monism. (shrink)

Maya Zehfuss critiques constructivist theories of international relations (currently considered to be at the cutting edge of the discipline) and finds them wanting and even politically dangerous. Zehfuss uses Germany's first shift toward using its military abroad after the end of the Cold War to illustrate why constructivism does not work and how it leads to particular analytical outcomes and forecloses others. She argues that scholars are limiting their abilities to act responsibly in international relations by looking towards (...) class='Hi'>constructivism as the future. (shrink)

Introduction: mathematization and the language of nature -- Realists and nominalists : language and mathematics before the scientific revolution -- Ontology recapitulates epistemology : Gassendi, epicurean atomism, and nominalism -- British empiricism, nominalism, and constructivism -- Three mathematicians : constructivist epistemology and the new mathematical methods -- Conclusion: mathematization and the nature of language.

Constructivism in ethics is the view that insofar as there are normative truths, for example, truths about what we ought to do, they are in some sense determined by an idealized process of rational deliberation, choice, or agreement. As a “first-order moral account”--an account of which moral principles are correct-- constructivism is the view that the moral principles we ought to accept or follow are the ones that agents would agree to or endorse were they to engage in (...) a hypothetical or idealized process of rational deliberation. As a “metaethical account” – an account of whether there are any normative truths and, if so, what they are like – constructivism holds that there are normative truths. These truths are not fixed by facts that are independent of the practical standpoint, however characterized; rather, they are constituted by what agents would agree to under some specified conditions of choice. In working to provide a more precise definition of constructivism in metaethics, the focus of this entry, one faces two main difficulties. The first difficulty is that constructivism comes in several varieties, each of which claims a different niche within metaethics, and some claim no space at all. The second difficulty concerns where to place constructivism on the metaethical map in relation to realism and anti-realism. These are terms of art, and it is highly contested which views count as realist and which as antirealist. These two difficulties will be addressed in what follows by focusing on the distinctive questions that constructivist theories are designed to answer. Section §1 defines the scope of constructivism in ethics, in contrast to constructivism in political theory. Sections §§2-5 illustrate the main varieties of metaethical constructivism, which are designed to account for the nature of normative truths and practical reasons. Section §6 presents the main varieties of constructivist accounts of the justification of moral judgments of right and wrong. Section §7 discusses the metaethical status of constructivism, and its distinctive import. (shrink)

I apply some of Gash’s interpretation of radical constructivism to an analogous critique of naïve realism in contemporary philosophy of education. It explores the significant potential in ….

Though nominalism is a major presupposition in academia and western society, R. Scott Smith shows that nominalism undermines all knowledge whatsoever. In light of the many clear examples of knowledge that we do have, nominalism should be replaced by a realist view of properties.

The principal findings of experimental economics are that impersonal exchange in markets converges in repeated interaction to the equilibrium states implied by economic theory, under information conditions far weaker than specified in the theory. In personal, social, and economic exchange, as studied in two-person games, cooperation exceeds the prediction of traditional game theory. This book relates these two findings to field studies and applications and integrates them with the main themes of the Scottish Enlightenment and with the thoughts of F. (...) A. Hayek. (shrink)

A challenger of traditions and boundaries A pivotal figure in 20th-century philosophy, Nelson Goodman has made seminal contributions to metaphysics, epistemology, aesthetics, and the philosophy of language, with surprising connections that cut across traditional boundaries. In the early 1950s, Goodman, Quine, and White published a series of papers that threatened to torpedo fundamental assumptions of traditional philosophy. They advocated repudiating analyticity, necessity, and prior assumptions. Some philosophers, realizing the seismic effects repudiation would cause, argued that philosophy (...) should retain the familiar framework. Others considered the arguments compelling, but despaired of doing philosophy without the framework. Goodman disagreed with both factions. Rather than regretting the loss of structure, he capitalized on the opportunities that arise when the strictures of tradition are loosened. Available individually by volume 1. Nominalism, Constructivism, and Relativism in the Work of Nelson Goodman (0-8153-2609-2) 296 pages 2. Nelson Goodman's New Riddle of Induction (0-8153-2610-6) 312 pages 3. Nelson Goodman's Philosophy of Art (0-8153-2611-4) 284 pages 4. Nelson Goodman's Theory of Symbols and its Applications (0-8153-2612-2) 344 pages. (shrink)

What was the basis for the adoption of mathematics as the primary mode of discourse for describing natural events by a large segment of the philosophical community in the seventeenth century? In answering this question, this book demonstrates that a significant group of philosophers shared the belief that there is no necessary correspondence between external reality and objects of human understanding, which they held to include the objects of mathematical and linguistic discourse. The result is a scholarly reliable, but accessible, (...) account of the role of mathematics in the works of Galileo, Kepler, Descartes, Newton, Leibniz, and Berkeley. This impressive volume will benefit scholars interested in the history of philosophy, mathematical philosophy and the history of mathematics. (shrink)

Attempts have been made to analyse features in mathematics within a social constructivist context. In this paper we critically examine some of those attempts recently made with focus on problems of the objectivity, ontology, necessity, and atemporality of mathematics. Our conclusion is that these attempts fare no better than traditional alternatives, and that they, furthermore, create new problems of their own.

Constructivists hold that truths about practical reasons are to be explained in terms of truths about the correct exercise of practical reason (rather than vice versa). But what is the normative status of the correctness-defining standards of practical reason? The problem is that constructivism appears to presuppose the truth of two theses that seem hard to reconcile. First, for constructivism to be remotely plausible, the relevant standards must be genuinely (and not merely formally or minimally) normative. Second, to (...) avoid circularity, the relevant standards must be non-reason-involving, i.e. prior to and independent of practical reasons. From the standpoint of the contemporary philosophy of normatively, this is a surprising combination to say the least. What could these genuinely normative but non-reason-involving standards possibly be? The standard constructivist response is to insist that the relevant standards possess a special kind of necessity inasmuch as we only count as occupying the “deliberative standpoint” or as a “deliberative agent” insofar as we comply with or accept the relevant standards. I offer a different response. My response holds that the special normative status of the relevant standards consists in their exhibiting a distinctive kind of practical necessity that derives from the fact that they determine what I have called elsewhere truths about “the thing to do” – namely, truths about correct answers to the question of what to do. Understanding the norms of practical reason in these terms vindicates the idea that standards of practical reason are genuinely normative since truths about the thing to do plausibly possess the hallmarks of genuine normativity. And it vindicates the idea that the standards are not reason-involving since truths about the thing to do are plausibly prior to and independent of truths about practical reasons. (shrink)

This paper surveys three controversial new directions in research about the nature of science and briefly summarizes both the intellectual and sociological impact of this work. A bibliographic introduction to the major literature is provided and some fruitful directions for future research are proposed. Philosophers of science are also exhorted to perform 'community service' by correcting misunderstandings of the methods of science fostered by these new approaches.

The article reveals the consequent process of the Кantian empirical cognition. Separating a priori and empirical knowledge, the philosopher gives grounds for a more detailed analysis of empirical and pure experience. Since Kant denies empiricism, the question arises what is an experience for him? I think that spatio-temporal relations that play a leading role in his theory of experience can be analyzed on the transcendental level as the concept of magnitude, while the sensations of space and time, in turn, can (...) be pretty good described from the perspective of a physiology of empirical experience. Kant’s phenomenological approach allows for a description of the mechanism of perception, beginning with the pure intuitions, which underlie mathematics, and ending with empirical sensations. Thus, I claim that it is possible to reconstruct a certain scale of perceptions: there are intuitions of space and time on the transcendental level, which gives the possibility of applying mathematics to nature. This level becomes a starting point for the subsequent stage of presentation of mathematical time and geometric space. The process results in empirical judgments which don’t have an apodictic character any more. (shrink)

Fully accessible to students and scholars alike, this engaging book introduces the constructivist approach to understanding world affairs.

Discusses how to develop the idea that the normative truth is perspective-dependent with a broadly constructivist approach to metaethics - arguing in favor of developing this idea in terms of the idea that the normative truth is dependent upon the perspective of the assessor.