A consensus theory of truth is the process of taking statements to be true simply because people generally agree upon them.
An ancient criterion of truth, the consensus gentium (Latin for agreement of the people), states "that which is universal among men carries the weight of truth" (Ferm, 64). A number of consensus theories of truth are based on variations of this principle. In some criteria the notion of universal consent is taken strictly, while others qualify the terms of consensus in various ways. There are versions of consensus theory in which the specific population weighing in on a given question, the proportion of the population required for consent, and the period of time needed to declare consensus vary from the classical norm.
A descriptive theory is one that tells how things are, while a normative theory tells how things ought to be. Expressed in practical terms, a normative theory, more properly called a policy , tells agents how they ought to act. A policy can be an absolute imperative, telling agents how they ought to act in any case, or it can be a contingent directive, telling agents how they ought to act if they want to achieve a particular goal. A policy is frequently stated in the form of a piece of advice called a heuristic , a maxim , a norm , a rule , a slogan , and so on. Other names for a policy are a recommendation and a regulative principle .
A regulative ideal can be expressed in the form of a description, but what it describes is an ideal state of affairs, a condition of being that constitutes its aim, end, goal, intention, or objective. It is not the usual case for the actual case to be the ideal case, or else there would hardly be much call for a policy aimed at achieving an ideal.
Corresponding to the distinction between actual conditions and ideal conditions there is a distinction between actual consensus and ideal consensus. A theory of truth founded on a notion of actual consensus is a very different thing from a theory of truth founded on a notion of ideal consensus. Moreover, an ideal consensus may be ideal in several different ways. The state of consensus may be ideal in its own nature, conceived in the matrix of actual experience by way of intellectual operations like abstraction, extrapolation, and limit formation. Or the conditions under which the consensus is conceived to be possible may be formulated as idealizations of actual conditions. A very common type of ideal consensus theory refers to a community that is an idealization of actual communities in one or more respects.
It is very difficult to find any philosopher of note who asserts a bare, naive, or pure consensus theory of truth, in other words, a treatment of truth that is based on actual consensus in an actual community without further qualification. One obvious critique is that not everyone agrees to consensus theory, implying that it may not be true by its own criteria. Another problem is defining how we know that consensus is achieved without falling prey to an infinite regress. Even if everyone agrees to a particular proposition, we may not know that it is true until everyone agrees that everyone agrees to it. Bare consensus theories are frequent topics of discussion, however, evidently because they serve the function of reference points for the discussion of alternative theories.
If consensus equals truth, then truth can be made by forcing or organizing a consensus, rather than being discovered through experiment or observation, or existing separately from consensus. The principles of mathematics also do not hold under consensus truth because mathematical propositions build on each other. If the consensus declared 2+2=5 it would render the practice of mathematics where 2+2=4 impossible.
Imre Lakatos characterizes it as a "watered down" form of provable truth propounded by some sociologists of knowledge, particularly Thomas Kuhn and Michael Polanyi. [1]
Philosopher Nigel Warburton argues that the truth by consensus process is not a reliable way of discovering truth, that there is general agreement upon something does not make it actually true.
There are two main reasons for this: [2]
Jürgen Habermas is a German philosopher and social theorist in the tradition of critical theory and pragmatism. His work addresses communicative rationality and the public sphere.
Truth is the property of being in accord with fact or reality. In everyday language, truth is typically ascribed to things that aim to represent reality or otherwise correspond to it, such as beliefs, propositions, and declarative sentences.
The Frankfurt School is a school of sociology and critical philosophy associated with the Institute for Social Research, founded at Goethe University Frankfurt in 1923. Active in the Weimar Republic during the European interwar period, the Frankfurt School initially comprised intellectuals, academics, and political dissidents dissatisfied with the contemporary socio-economic systems of the 1930s. The Frankfurt theorists proposed that social theory was inadequate for explaining the turbulent political factionalism and reactionary politics occurring in 20th-century liberal capitalist societies, such as Nazism. Critical of both capitalism and of Marxism–Leninism as philosophically inflexible systems of social organization, the School's critical theory research indicated alternative paths to realizing the social development of a society and a nation.
The public sphere is an area in social life where individuals can come together to freely discuss and identify societal problems, and through that discussion influence political action. A "Public" is "of or concerning the people as a whole." Such a discussion is called public debate and is defined as the expression of views on matters that are of concern to the public—often, but not always, with opposing or diverging views being expressed by participants in the discussion. Public debate takes place mostly through the mass media, but also at meetings or through social media, academic publications and government policy documents.
A pragmatic theory of truth is a theory of truth within the philosophies of pragmatism and pragmaticism. Pragmatic theories of truth were first posited by Charles Sanders Peirce, William James, and John Dewey. The common features of these theories are a reliance on the pragmatic maxim as a means of clarifying the meanings of difficult concepts such as truth; and an emphasis on the fact that belief, certainty, knowledge, or truth is the result of an inquiry.
Universal pragmatics (UP), more recently placed under the heading of formal pragmatics, is the philosophical study of the necessary conditions for reaching an understanding through communication. The philosopher Jürgen Habermas coined the term in his essay "What is Universal Pragmatics?" where he suggests that human competition, conflict, and strategic action are attempts to achieve understanding that have failed because of modal confusions. The implication is that coming to terms with how people understand or misunderstand one another could lead to a reduction of social conflict.
Rational reconstruction is a philosophical term with several distinct meanings. It is found in the work of Jürgen Habermas and Imre Lakatos.
In philosophy and epistemology, epistemic theories of truth are attempts to analyze the notion of truth in terms of epistemic notions such as knowledge, belief, acceptance, verification, justification, and perspective.
Discourse ethics refers to a type of argument that attempts to establish normative or ethical truths by examining the presuppositions of discourse. The ethical theory originated with German philosophers Jürgen Habermas and Karl-Otto Apel, and variations have been used by Frank Van Dun and Habermas' student Hans-Hermann Hoppe.
Communicative rationality or communicative reason is a theory or set of theories which describes human rationality as a necessary outcome of successful communication. This theory is in particular tied to the philosophy of German philosophers Karl-Otto Apel and Jürgen Habermas, and their program of universal pragmatics, along with its related theories such as those on discourse ethics and rational reconstruction. This view of reason is concerned with clarifying the norms and procedures by which agreement can be reached, and is therefore a view of reason as a form of public justification.
Between Facts and Norms is a 1992 book on deliberative politics by the German political philosopher Jürgen Habermas. The culmination of the project that Habermas began with The Structural Transformation of the Public Sphere in 1962, it represents a lifetime of political thought on the nature of democracy and law.
William Oliver Stanley, Jr. is a former professor in the University of Illinois at Urbana-Champaign at the Urbana College of Education. He was one of the founders of the social foundations of education, an approach to the sociology of education.
Originally, fallibilism is the philosophical principle that propositions can be accepted even though they cannot be conclusively proven or justified, or that neither knowledge nor belief is certain. The term was coined in the late nineteenth century by the American philosopher Charles Sanders Peirce, as a response to foundationalism. Theorists, following Austrian-British philosopher Karl Popper, may also refer to fallibilism as the notion that knowledge might turn out to be false. Furthermore, fallibilism is said to imply corrigibilism, the principle that propositions are open to revision. Fallibilism is often juxtaposed with infallibilism.
"Instrumental" and "value-rational action" are terms scholars use to identify two kinds of behavior that humans can engage in. Scholars call using means that "work" as tools, instrumental action, and pursuing ends that are "right" as legitimate ends, value-rational action.
In philosophy—more specifically, in its sub-fields semantics, semiotics, philosophy of language, metaphysics, and metasemantics—meaning "is a relationship between two sorts of things: signs and the kinds of things they intend, express, or signify".
In sociology, communicative action is cooperative action undertaken by individuals based upon mutual deliberation and argumentation. The term was developed by German philosopher-sociologist Jürgen Habermas in his work The Theory of Communicative Action.
The Theory of Communicative Action is a two-volume 1981 book by the philosopher Jürgen Habermas, in which the author continues his project of finding a way to ground "the social sciences in a theory of language", which had been set out in On the Logic of the Social Sciences (1967). The two volumes are Reason and the Rationalization of Society, in which Habermas establishes a concept of communicative rationality, and Lifeworld and System: A Critique of Functionalist Reason, in which Habermas creates the two level concept of society and lays out the critical theory for modernity.
An ideal speech situation was a term introduced in the early philosophy of Jürgen Habermas. It argues that an ideal speech situation is found when communication between individuals is governed by basic, implied rules. In an ideal speech situation, participants would be able to evaluate each other’s assertions solely on the basis of reason and evidence in an atmosphere completely free of any nonrational “coercive” influences, including both physical and psychological coercion. Furthermore, all participants would be motivated solely by the desire to obtain a rational consensus.
Constitutional patriotism is the idea that people should form a political attachment to the norms and values of a pluralistic liberal democratic constitution rather than to a national culture or cosmopolitan society. It is associated with post-nationalist identity because, while it is seen as a similar concept to nationalism, the attachment is based on the constitution rather than on a national culture. In essence, it is an attempt to re-conceptualize group identity with a focus on the interpretation of citizenship as a loyalty that goes beyond individuals' ethnocultural identification. Theorists believe this to be more defensible than other forms of shared commitment in a diverse modern state with multiple languages and group identities. It is particularly relevant in post-national democratic states in which multiple cultural and ethnic groups coexist. It was influential in the development of the European Union and a key to Europeanism as a basis for multiple countries belonging to a supranational union.
Thomas McCarthy is John Shaffer Professor of Philosophy Emeritus at Northwestern University. Before joining Northwestern in 1985, he taught for four years at Munich University and for thirteen years at Boston University. After retiring from Northwestern in 2006, he served for three years as William H. Orrick Visiting Professor at Yale University. Over the course of his academic career, McCarthy's work was supported by grants and fellowships from the National Endowment for the Humanities, the Alexander von Humboldt Foundation, the American Council of Learned Societies, and the Guggenheim Foundation. Early in his career he wrote and taught principally in the philosophy of logic and mathematics and then in the philosophy of the social sciences. Subsequently, and for the bulk of his career, he worked in the general area of critical, social and political theory, and in particular on the work of Jürgen Habermas, of which he is widely regarded as one of the foremost English-language interpreters. During his last decade of teaching, McCarthy focused on theoretical issues in the history of racist and imperialist thought, and particularly on their interweaving in theories of progress and development.
