An ideology is a set of normative beliefs and values that a person or other entity has for non-epistemic reasons.^[1] These rely on basic assumptions about reality that may or may not have any factual basis. The term is especially used to describe systems of ideas and ideals which form the basis of economic or political theories and resultant policies. In these there are tenuous causal links between policies and outcomes owing to the large numbers of variables available, so that many key assumptions have to be made.^[2] In political science the term is used in a descriptive sense to refer to political belief systems.^[3]

The term was coined by Antoine Destutt de Tracy, a French Enlightenment aristocrat and philosopher, who conceived it in 1796 as the "science of ideas" during the French Reign of Terror by trying to develop a rational system of ideas to oppose the irrational impulses of the mob. However, in contemporary philosophy it is narrower in scope than that original concept, or the ideas expressed in broad concepts such as worldview, The Imaginary and in ontology.^[4]

In the sense defined by French Marxist philosopher Louis Althusser, ideology is "the imagined existence (or idea) of things as it relates to the real conditions of existence".

The term "ideology" was born during the Reign of Terror of French Revolution, and acquired several other meanings thereafter.

The word, and the system of ideas associated with it, was coined by Antoine Destutt de Tracy in 1796,^[5] while he was in prison pending trial during the Terror. The word was created by assembling the words idea-logy from -λογία. He devised the term for a "science of ideas" he hoped would form a secure foundation for the moral and political sciences. He based the word on two things: 1) sensations people experience as they interact with the material world; and 2) the ideas that form in their minds due to those sensations. He conceived "Ideology" as a liberal philosophy that would defend individual liberty, property, free markets, and constitutional limits on state power. He argues that among these aspects ideology is the most generic term, because the science of ideas also contains the study of their expression and deduction.^[6]

The coup that overthrew Maximilien Robespierre allowed Tracy to pursue his work.^[6][5]

Tracy reacted to the terroristic phase of the revolution (during the Napoleonic regime) by trying to work out a rational system of ideas to oppose the irrational mob impulses that had nearly destroyed him.

Napoleon Bonaparte came to view 'Ideology' a term of abuse, which he often hurled against his liberal foes in Tracy's Institutional. According to Karl Mannheim's historical reconstruction of the shifts in the meaning of ideology, the modern meaning of the word was born when Napoleon used it to describe his opponents as "the ideologues". Karl Marx adopted this negative sense of the term and used it in his writings (he described Tracy as a "fischblütige Bourgeoisdoktrinär", a fishblooded bourgeois doctrine).^[7]

Tracy's major book, The Elements of Ideology, was soon translated into the major languages of Europe, and in the next generation, when post-Napoleonic governments adopted a reactionary stance, influenced the Italian, Spanish and Russian thinkers who had begun to describe themselves as "liberals" and who attempted to reignite revolutionary activity in the early 1820s (these included the Carlist rebels in Spain, the Carbonari societies in France and Italy, and the Decembrists in Russia).

In the century after Tracy, the term ideology moved back and forth between positive and negative connotations.

(Perhaps the most accessible source for the near-original meaning of ideology is Hippolyte Taine's work on the Ancien Régime (the first volume of "Origins of Contemporary France"). He describes ideology as rather like teaching philosophy by the Socratic method, but without extending the vocabulary beyond what the general reader already possessed, and without the examples from observation that practical science would require. Taine identifies it not just with Destutt De Tracy, but also with his milieu, and includes Condillac as one of its precursors. (Destutt de Tracy read the works of Locke and Condillac while he was imprisoned during the Reign of Terror.))

The term "ideology" has dropped some of its pejorative sting, and has become a neutral term in the analysis of differing political opinions and views of social groups.^[8] While Karl Marx situated the term within class struggle and domination,^[9][10] others believed it was a necessary part of institutional functioning and social integration.^[11]

During considerable analysis of different ideological patterns, some have described the analysis as meta-ideology (the study of the structure, form, and manifestation of ideologies).

Recent analysis tends to posit that ideology is a coherent system of ideas that rely on a few basic assumptions about reality that may or may not have any factual basis. Through this system, ideas become coherent repeated patterns through the subjective ongoing choices that people make. These ideas serve as the seed around which further thought grows. Believers in ideology range from passive acceptance through fervent advocacy to true belief. According to most recent analysis, ideologies are neither necessarily right nor wrong.

Definitions, such as by Manfred Steger and Paul James emphasize both the issue of patterning and contingent claims to truth:

The works of George Walford and Harold Walsby, done under the heading of systematic ideology, are attempts to explore the relationships between ideology and social systems. Charles Blattberg offers an account that distinguishes political ideologies from political philosophies.^[13]

David W. Minar describes six different ways the word "ideology" has been used:

For Willard A. Mullins an ideology should be contrasted with the related (but different) issues of utopia and historical myth. An ideology is composed of four basic characteristics:

Terry Eagleton outlines (more or less in no particular order) some definitions of ideology:^[14]

The German philosopher Christian Duncker ^[76] called for a "critical reflection of the ideology concept" (2006).

In his work, he strove to bring the concept of ideology into the foreground, as well as the closely connected concerns of epistemology and history. In this work, the term ideology is defined in terms of a system of presentations that explicitly or implicitly claim to absolute truth.

There are many different kinds of ideologies: political, social, epistemological, and ethical.

In the Marxist economic base and superstructure model of society, base denotes the relations of production and modes of production, and superstructure denotes the dominant ideology (religious, legal, political systems). The economic base of production determines the political superstructure of a society. Ruling class-interests determine the superstructure and the nature of the justifying ideology—actions feasible because the ruling class control the means of production. For example, in a feudal mode of production, religious ideology is the most prominent aspect of the superstructure, while in capitalist formations, ideologies such as liberalism and social democracy dominate. Hence the great importance of the ideology justifying a society; it politically confuses the alienated groups of society via false consciousness.

Some explanations have been presented.

György Lukács proposes ideology as a projection of the class consciousness of the ruling class. Antonio Gramsci uses cultural hegemony to explain why the working-class have a false ideological conception of what their best interests are. Marx argued that "The class which has the means of material production at its disposal has control at the same time over the means of mental production."^[16]

The Marxist formulation of "ideology as an instrument of social reproduction" is conceptually important to the sociology of knowledge,^[17] viz. Karl Mannheim, Daniel Bell, and Jürgen Habermas et al. Moreover, Mannheim has developed, and progressed, from the "total" but "special" Marxist conception of ideology to a "general" and "total" ideological conception acknowledging that all ideology (including Marxism) resulted from social life, an idea developed by the sociologist Pierre Bourdieu. Slavoj Žižek and the earlier Frankfurt School added to the "general theory" of ideology a psychoanalytic insight that ideologies do not include only conscious, but also unconscious ideas.

Louis Althusser proposed both spiritual and materialistic conception of ideology, which made use of a special type of discourse: the lacunar discourse. A number of propositions, which are never untrue, suggest a number of other propositions, which are. In this way, the essence of the lacunar discourse is what is not told (but is suggested).

For example, the statement "All are equal before the law", which is a theoretical groundwork of current legal systems, suggests that all people may be of equal worth or have equal opportunities.

This is not true, for the concept of private property and power over the means of production results in some people being able to own more (much more) than others. This power disparity contradicts the claim that all share both practical worth and future opportunity equally; for example, the rich can afford better legal representation, which practically privileges them before the law.

Althusser also proffered the concept of the ideological state apparatus to explain his theory of ideology. His first thesis was "ideology has no history": while individual ideologies have histories, interleaved with the general class struggle of society, the general form of ideology is external to history.

For Althusser, beliefs and ideas are the products of social practices, not the reverse.

His thesis that "ideas are material" is illustrated by the "scandalous advice" of Pascal toward unbelievers: "Kneel and pray, and then you will believe." What is ultimately ideological for Althusser are not the subjective beliefs held in the conscious "minds" of human individuals, but rather discourses that produce these beliefs, the material institutions and rituals that individuals take part in without submitting it to conscious examination and so much more critical thinking.

The French Marxist theorist Guy Debord, founding member of the Situationist International, argued that when the commodity becomes the "essential category" of society, i.e. when the process of commodification has been consummated to its fullest extent, the image of society propagated by the commodity (as it describes all of life as constituted by notions and objects deriving their value only as commodities tradeable in terms of exchange value), colonizes all of life and reduces society to a mere representation, The Society of the Spectacle.^[18]

The German cultural historian Silvio Vietta described the development and expansion of Western rationality from ancient times onwards as often accompanied by and shaped by ideologies like that of the "just war", the "true religion", racism, nationalism, or the vision of future history as a kind of heaven on earth in communism. He said that ideas like these became ideologies by giving hegemonic political actions an idealistic veneer and equipping their leaders with a higher and, in the "political religions" (Eric Voegelin), nearly God-like power, so that they became masters over the lives (and the deaths) of millions of people. He considered that ideologies therefore contributed to power politics irrational shields of ideas beneath which they could operate as manifestations of idealism.^[19]A%20Theory%20of%20Global%20Civiliza]]^{[[20]](https://openlibrary.org/search?q=Silvio%20Vietta%20%282012%29.%20} [[CITE|20|https://openlibrary.org/search?q=Silvio%20Vietta%20%282012%29.%20*Rationalit%C3%A4t.%20Eine%20Weltgesc)

The American philosopher Eric Hoffer identified several elements that unify followers of a particular ideology:^[21]

1. Hatred: "Mass movements can rise and spread without a God, but never without belief in a devil.".^[21] The "ideal devil" is a foreigner.^[21]

2. Imitation: "The less satisfaction we derive from being ourselves, the greater is our desire to be like others... the more we mistrust our judgment and luck, the more are we ready to follow the example of others."^[21]

3. Persuasion: The proselytizing zeal of propagandists derives from "a passionate search for something not yet found more than a desire to bestow something we already have".^[21]

4. Coercion: Hoffer asserts that violence and fanaticism are interdependent.^[21] People forcibly converted to Islamic or communist beliefs become as fanatical as those who did the forcing.^[21] "It takes fanatical faith to rationalize our cowardice."^[21]

5. Leadership: Without the leader, there is no movement.

Often the leader must wait long in the wings until the time is ripe.

He calls for sacrifices in the present, to justify his vision of a breathtaking future.

The skills required include: audacity, brazenness, iron will, fanatical conviction; passionate hatred, cunning, a delight in symbols; ability to inspire blind faith in the masses and a group of able lieutenants.^[21] Charlatanism is indispensable, and the leader often imitates both friend and foe, "a single-minded fashioning after a model". He will not lead followers towards the "promised land", but only "away from their unwanted selves".^[21]

6. Action: Original thoughts are suppressed, and unity encouraged, if the masses are kept occupied through great projects, marches, exploration and industry.^[21]

7. Suspicion: "There is prying and spying, tense watching and a tense awareness of being watched."

This pathological mistrust goes unchallenged and encourages conformity, not dissent.^[21]

Ronald Inglehart of the University of Michigan is author of the World Values Survey, which, since 1980, has mapped social attitudes in 100 countries representing 90% of global population. Results indicate that where people live is likely to closely correlate with their ideological beliefs. In much of Africa, South Asia and the Middle East, people prefer traditional beliefs and are less tolerant of liberal values. Protestant Europe, at the other extreme, adheres more to secular beliefs and liberal values. Alone among high-income countries, the United States is exceptional in its adherence to traditional beliefs, in this case Christianity.

In social studies, a political ideology is a certain ethical set of ideals, principles, doctrines, myths, or symbols of a social movement, institution, class, or large group that explains how society should work, and offers some political and cultural blueprint for a certain social order. Political ideologies are concerned with many different aspects of a society, including (for example): the economy, education, health care, labor law, criminal law, the justice system, the provision of social security and social welfare, trade, the environment, minors, immigration, race, use of the military, patriotism, and established religion.

Political ideologies have two dimensions:

There are many proposed methods for the classification of political ideologies, each of these different methods generate a specific political spectrum. Ideologies also identify themselves by their position on the political spectrum (such as the left, the center or the right), though precision in this respect can very often become controversial. Finally, ideologies can be distinguished from political strategies (e.g., populism) and from single issues that a party may be built around (e.g. legalization of marijuana). Philosopher Michael Oakeshott provides a good definition of ideology as "the formalized abridgment of the supposed sub-stratum of the rational truth contained in the tradition".

A political ideology largely concerns itself with how to allocate power and to what ends power should be used. Some parties follow a certain ideology very closely, while others may take broad inspiration from a group of related ideologies without specifically embracing any one of them. Each political ideology contains certain ideas on what it considers the best form of government (e.g., democracy, demagogy, theocracy, caliphate etc.), and the best economic system (e.g. capitalism, socialism, etc.). Sometimes the same word is used to identify both an ideology and one of its main ideas. For instance, "socialism" may refer to an economic system, or it may refer to an ideology that supports that economic system.

Studies of the concept of ideology itself (rather than specific ideologies) have been carried out under the name of systematic ideology.

Post 1991, many commentators claim that we are living in a post-ideological age,^[33] in which redemptive, all-encompassing ideologies have failed, and this view is often associated with Francis Fukuyama's writings on "the end of history".^[34] On the other hand, Nienhueser sees research (in the field of human resource management) as ongoingly "generating ideology".^[35]

Slavoj Zizek has pointed out how the very notion of post-ideology can enable the deepest, blindest form of ideology. A sort of false consciousness or false cynicism, engaged in for the purpose of lending one's point of view the respect of being objective, pretending neutral cynicism, without truly being so. Rather than help avoiding ideology, this lapse only deepens the commitment to an existing one. Zizek calls this "a post-modernist trap".^[36][37]

There are several studies that show that affinity to a specific political ideology is heritable.^{[38][39][40][41][42][43][44][45][46]}

When a political ideology becomes a dominantly pervasive component within a government, one can speak of an ideocracy.^[47] Different forms of government utilize ideology in various ways, not always restricted to politics and society. Certain ideas and schools of thought become favored, or rejected, over others, depending on their compatibility with or use for the reigning social order.

"Madmen in authority, who hear voices in the air, are distilling their frenzy from some academic scribbler of a few years back", said John Maynard Keynes.^[48] How do ideologies become part of government policy? In The Anatomy of Revolution, Crane Brinton said that new ideology spreads when there is discontent with the old regime.^[49] Extremists such as Lenin and Robespierre will overcome more moderate revolutionaries.^[50] This stage is soon followed by Thermidor, a reining back of revolutionary enthusiasm under pragmatists like Stalin and Napoleon Bonaparte who bring "normalcy and equilibrium".^[51] A very similar sequence ("men of ideas>fanatics>practical men of action") occurs in Eric Hoffer, The True Believer,^[52] and Brinton's sequence is reiterated by J. William Fulbright.^[53] The revolution thus becomes established as an Ideocracy, but its rise is likely to be checked by a Political midlife crisis.

Even when the challenging of existing beliefs is encouraged, as in scientific theories, the dominant paradigm or mindset can prevent certain challenges, theories, or experiments from being advanced.

A special case of science adopted as ideology is that of ecology, which studies the relationships among living things on Earth.

Perceptual psychologist James J. Gibson believed that human perception of ecological relationships was the basis of self-awareness and cognition itself. Linguist George Lakoff has proposed a cognitive science of mathematics wherein even the most fundamental ideas of arithmetic would be seen as consequences or products of human perception—which is itself necessarily evolved within an ecology.

Deep ecology and the modern ecology movement (and, to a lesser degree, Green parties) appear to have adopted ecological sciences as a positive ideology.

Some accuse ecological economics of likewise turning scientific theory into political economy, although theses in that science can often be tested. The modern practice of green economics fuses both approaches and seems to be part science, part ideology.

This is far from the only theory of economics raised to ideology status.

Some notable economically based ideologies include neoliberalism, monetarism, mercantilism, mixed economy, social Darwinism, communism, laissez-faire economics, and free trade. There are also current theories of safe trade and fair trade that can be seen as ideologies.

Psychological research^[54] increasingly suggests that ideologies reflect (unconscious) motivational processes, as opposed to the view that political convictions always reflect independent and unbiased thinking.

Jost, Ledgerwood and Hardin proposed in 2008 that ideologies may function as prepackaged units of interpretation that spread because of basic human motives to understand the world, avoid existential threat, and maintain valued interpersonal relationships.^[54] These authors conclude that such motives may lead disproportionately to the adoption of system-justifying worldviews. Psychologists generally agree that personality traits, individual difference variables, needs, and ideological beliefs seem to have something in common.^[55]

According to the semiotician Bob Hodge, ideology "identifies a unitary object that incorporates complex sets of meanings with the social agents and processes that produced them. No other term captures this object as well as 'ideology'. Foucault's 'episteme' is too narrow and abstract, not social enough. His 'discourse', popular because it covers some of ideology's terrain with less baggage, is too confined to verbal systems. 'Worldview' is too metaphysical, 'propaganda' too loaded. Despite or because of its contradictions, 'ideology' still plays a key role in semiotics oriented to social, political life."^[56] Authors such as Michael Freeden have also recently incorporated a semantic analysis to the study of ideologies.

Sociologists define ideology as "cultural beliefs that justify particular social arrangements, including patterns of inequality".^[57] Dominant groups use these sets of cultural beliefs and practices to justify the systems of inequality that maintain their group's social power over non-dominant groups.

Ideologies use a society's symbol system to organize social relations in a hierarchy, with some social identities being superior to other social identities, which are considered inferior. The dominant ideology in a society is passed along through the society's major social institutions, such as the media, the family, education, and religion.^[58] As societies changed throughout history, so did the ideologies that justified systems of inequality.^[57]

Sociological examples of ideologies include: racism; sexism; heterosexism; ableism; and ethnocentrism.^[58]