Conservatism is a cultural, social, and political philosophy and ideology that seeks to promote and preserve traditional institutions, customs, and values.: "Conservatism, political doctrine that emphasizes the value of traditional institutions and practices.": "In particular, conservatives have emphasized that society is held together by the maintenance of traditional institutions such as the family and by respect for an established culture, based upon religion, tradition and custom." The central tenets of conservatism may vary in relation to the culture and civilization in which it appears. In Western culture, depending on the particular nation and the particular time period, conservatives seek to promote and preserve a range of institutions, such as the nuclear family, organized religion, the military, the nation-state, constitution, property rights, rule of law, aristocracy, and monarchy.: "[C]onservatives favour the importance of ‘natural’ forms of authority, such as the monarchy, the church, the nation and the family.": "Conservatives aim to conserve the natural and fundamental elements of society, which are: private property, family, the homeland, and even religion [...] the right-wing conservative is such not because he wants to conserve any regime and any institutions, but rather specific institutions and particular values."

The 18th-century Anglo-Irish statesman Edmund Burke, who opposed the French Revolution, is credited as one of the forefathers of Western conservative thought in the 1790s along with Savoyard statesman Joseph de Maistre. The first established use of the term in a political context originated in 1818 with François-René de Chateaubriand during the period of Bourbon Restoration that sought to roll back the policies of the French Revolution and establish social order.

Conservatism has varied considerably as it has adapted itself to existing traditions and national cultures. Thus, conservatives from different parts of the world, each upholding their respective traditions, may disagree on a wide range of issues. One of the three major ideologies along with liberalism and socialism, conservatism is the dominant ideology in many countries across the world, including Hungary, India, Iran, Israel, Italy, Japan, Poland, and Russia. Historically associated with right-wing politics, the term has been used to describe a wide range of views. Conservatism may be either libertarian or authoritarian,: "While contemporary conservatives are keen to demonstrate their commitment to democratic, particularly liberal-democratic, principles, there is a tradition within conservatism that has favoured authoritarian rule, especially in continental Europe." populist or elitist, progressive or reactionary,: "The Canadian Conservative Party adopted the title Progressive Conservative precisely to distance itself from reactionary ideas." moderate or extreme.: "Conservatives can be radical or moderate. It depends on the state of the contest, on the stakes in the contest, and on which party is attacking, which defending."

Beliefs and principles Scholars have tried to define conservatism as a set of beliefs or principles. Political scientist Andrew Heywood argues that the five central beliefs of conservatism are tradition, human imperfection, organic society, authority/hierarchy, and property. Historian Russell Kirk developed five canons of conservatism in The Conservative Mind (1953): A belief in a transcendent order, which Kirk described variously as based in tradition, divine revelation, or natural law; An affection for the "variety and mystery" of human existence; A conviction that society requires orders and classes that emphasize natural distinctions; A belief that property and freedom are closely linked; A faith in custom, convention, and prescription, and a recognition that innovation must be tied to existing traditions and customs, which entails a respect for the political value of prudence.

Some political scientists, such as Samuel P. Huntington, have added that while conservatism has core values, going back to the teachings of Edmund Burke, it is also a situational ideology, which aims to conserve diverse social traditions.Huntington, 1957, pp. 456-457 Under this definition, conservatives are seen as defending the established institutions of their time. According to Quintin Hogg, the chairman of the British Conservative Party in 1959: "Conservatism is not so much a philosophy as an attitude, a constant force, performing a timeless function in the development of a free society, and corresponding to a deep and permanent requirement of human nature itself."

Conservatism has been called a "philosophy of human imperfection" by political scientist Noël O'Sullivan, reflecting among its adherents a negative view of human nature and pessimism of the potential to improve it through 'utopian' schemes. Political philosopher Thomas Hobbes, the "intellectual godfather of the realist right", argued that the state of nature for humans was "poor, nasty, brutish, and short", requiring centralized authority with royal sovereignty to guarantee law and order. Political philosopher Edmund Burke, often called the father of modern conservatism, believed that human beings are steeped in original sin and that society therefore needs traditional institutions, such as an established church and a landed aristocracy, in order to function.

Tradition Despite the lack of a universal definition, certain themes can be recognized as common across conservative thought. According to philosopher Michael Oakeshott:

Such traditionalism may be a reflection of trust in time-tested methods of social organization, giving 'votes to the dead'. Traditions may also be steeped in a sense of identity.

Hierarchy In contrast to the tradition-based definition of conservatism, some left-wing political theorists like Corey Robin define conservatism primarily in terms of a general defense of social and economic inequality. From this perspective, conservatism is less an attempt to uphold old institutions and more "a meditation on—and theoretical rendition of—the felt experience of having power, seeing it threatened, and trying to win it back".

In Conservatism: A Rediscovery (2022), political philosopher Yoram Hazony argues that, in a traditional conservative community, members have importance and influence to the degree they are honored within the social hierarchy, which includes factors such as age, experience, and wisdom. Conservatives often glorify hierarchies, as demonstrated in an aphorism by conservative philosopher Nicolás Gómez Dávila: "Hierarchies are celestial. In hell all are equal." The word hierarchy has religious roots and translates to 'rule of a high priest.'

Authority Authority is a core tenet of conservatism. More specifically, conservatives tend to believe in traditional authority. According to sociologist Max Weber, this form of authority is "resting on an established belief in the sanctity of immemorial traditions and the legitimacy of those exercising authority under them". Philosopher Alexandre Kojève distinguishes between two different forms of traditional authority:

The Authority of the Father—represented by actual fathers as well as conceptual fathers such as priests and monarchs. The Authority of the Master—represented by aristocrats and military commanders.

Sociologist Robert Nisbet acknowledges that the decline of traditional authority in the modern world is partly linked with the retreat of old institutions such as guild, order, parish, and family—institutions that formerly acted as intermediaries between the state and the individual. Philosopher Hannah Arendt argues that the modern world suffers an existential crisis with a "dramatic breakdown of all traditional authorities," which are needed for the continuity of an established civilization.

Historical background Anglo-Irish statesman Edmund Burke has been widely regarded as the philosophical founder of modern conservatism. He served as the private secretary to the Marquess of Rockingham and as official pamphleteer to the Rockingham branch of the Whig party. Together with the Tories, they were the conservatives in the late 18th century United Kingdom.

Burke's views were a mixture of conservatism and republicanism. He supported the American Revolution of 1775–1783 but abhorred the violence of the French Revolution of 1789–1799. He accepted the ideals of private property and the economics of Adam Smith, but he thought that capitalism should remain subordinate to the conservative social ethic and that the business class should be subordinate to aristocracy. He insisted on standards of honor derived from the medieval aristocratic tradition and saw the aristocracy as the nation's natural leaders. That meant limits on the powers of the Crown, since he found the institutions of Parliament to be better informed than commissions appointed by the executive. He favored an established church, but allowed for a degree of religious toleration. Burke ultimately justified the social order on the basis of tradition: tradition represented the wisdom of the species, and he valued community and social harmony over social reforms.

Another form of conservatism developed in France in parallel to conservatism in Britain. It was influenced by Counter-Enlightenment works by philosophers such as Joseph de Maistre and Louis de Bonald. Many continental conservatives do not support separation of church and state, with most supporting state cooperation with the Catholic Church, such as had existed in France before the Revolution. Conservatives were also early to embrace nationalism, which was previously associated with liberalism and the Revolution in France. Another early French conservative, François-René de Chateaubriand, espoused a romantic opposition to modernity, contrasting its emptiness with the 'full heart' of traditional faith and loyalty. Elsewhere on the continent, German thinkers Justus Möser and Friedrich von Gentz criticized the Declaration of the Rights of Man and of the Citizen that came of the Revolution. Opposition was also expressed by German idealists such as Adam Müller and Georg Wilhelm Friedrich Hegel, the latter inspiring both leftist and rightist followers.

Both Burke and Maistre were critical of democracy in general, though their reasons differed. Maistre was pessimistic about humans being able to follow rules, while Burke was skeptical about humans' innate ability to make rules. For Maistre, rules had a divine origin, while Burke believed they arose from custom. The lack of custom for Burke, and the lack of divine guidance for Maistre, meant that people would act in terrible ways. Both also believed that liberty of the wrong kind led to bewilderment and political breakdown. Their ideas would together flow into a stream of anti-rationalist, romantic conservatism, but would still stay separate. Burke was more open to argumentation and disagreement, while Maistre sought faith and authority, leading to a more illiberal strain of thought.

Ideological variants Authoritarian conservatism

Authoritarian conservatism refers to autocratic regimes that portray authority as absolute and unquestionable. Authoritarian conservative movements show strong devotion towards religion, tradition, and culture while also expressing fervent nationalism akin to other far-right nationalist movements. Examples of authoritarian conservative dictators include Marshal Philippe Pétain in France, Regent Miklós Horthy in Hungary, General Ioannis Metaxas in Greece, King Alexander I in Yugoslavia, Prime Minister António de Oliveira Salazar in Portugal, Chancellor Engelbert Dollfuss in Austria, Generalissimo Francisco Franco in Spain,Stanley G. Payne. Fascism in Spain, 1923–1977. Madison: Wisconsin University Press, 1999. pp. 77–102. King Carol II in Romania, and Tsar Boris III in Bulgaria.