Which of the following best describes an important difference between the theories of revolution?

liberalism, political doctrine that takes protecting and enhancing the freedom of the individual to be the central problem of politics. Liberals typically believe that government is necessary to protect individuals from being harmed by others, but they also recognize that government itself can pose a threat to liberty. As the American Revolutionary pamphleteer Thomas Paine expressed it in Common Sense (1776), government is at best “a necessary evil.” Laws, judges, and police are needed to secure the individual’s life and liberty, but their coercive power may also be turned against the individual. The problem, then, is to devise a system that gives government the power necessary to protect individual liberty but also prevents those who govern from abusing that power.

The problem is compounded when one asks whether this is all that government can or should do on behalf of individual freedom. Some liberals—the so-called neoclassical liberals, or libertarians—answer that it is. Since the late 19th century, however, most liberals have insisted that the powers of government can promote as well as protect the freedom of the individual. According to modern liberalism, the chief task of government is to remove obstacles that prevent individuals from living freely or from fully realizing their potential. Such obstacles include poverty, disease, discrimination, and ignorance. The disagreement among liberals over whether government should promote individual freedom rather than merely protect it is reflected to some extent in the different prevailing conceptions of liberalism in the United States and Europe since the late 20th century. In the United States, liberalism is associated with the welfare-state policies of the New Deal program of the Democratic administration of Pres. Franklin D. Roosevelt, whereas in Europe it is more commonly associated with a commitment to limited government and laissez-faire economic policies (see below Contemporary liberalism).

This article discusses the political foundations and history of liberalism from the 17th century to the present. For coverage of classical and contemporary philosophical liberalism, see political philosophy. For biographies of individual philosophers, see John Locke; John Stuart Mill; John Rawls.

Liberalism is derived from two related features of Western culture. The first is the West’s preoccupation with individuality, as compared to the emphasis in other civilizations on status, caste, and tradition. Throughout much of history, individuals have been submerged in and subordinate to their clan, tribe, ethnic group, or kingdom. Liberalism is the culmination of developments in Western society that produced a sense of the importance of human individuality, a liberation of the individual from complete subservience to the group, and a relaxation of the tight hold of custom, law, and authority. In this respect, liberalism stands for the emancipation of the individual. See also individualism.

Liberalism also derives from the practice of adversariality, or adversariness, in European political and economic life, a process in which institutionalized competition—such as the competition between different political parties in electoral contests, between prosecution and defense in adversary procedure, or between different producers in a market economy (see monopoly and competition)—generates a dynamic social order. Adversarial systems have always been precarious, however, and it took a long time for the belief in adversariality to emerge from the more traditional view, traceable at least to Plato, that the state should be an organic structure, like a beehive, in which the different social classes cooperate by performing distinct yet complementary roles. The belief that competition is an essential part of a political system and that good government requires a vigorous opposition was still considered strange in most European countries in the early 19th century.

Underlying the liberal belief in adversariality is the conviction that human beings are essentially rational creatures capable of settling their political disputes through dialogue and compromise. This aspect of liberalism became particularly prominent in 20th-century projects aimed at eliminating war and resolving disagreements between states through organizations such as the League of Nations, the United Nations, and the International Court of Justice (World Court).

Get a Britannica Premium subscription and gain access to exclusive content. Subscribe Now

Liberalism has a close but sometimes uneasy relationship with democracy. At the centre of democratic doctrine is the belief that governments derive their authority from popular election; liberalism, on the other hand, is primarily concerned with the scope of governmental activity. Liberals often have been wary of democracy, then, because of fears that it might generate a tyranny by the majority. One might briskly say, therefore, that democracy looks after majorities and liberalism after unpopular minorities.

A bank in Italy accepts cheese as collateral for loans to dairy farmers. Their special vaults can house 440,000 giant wheels of leveraged Parmigiano-Reggiano.

Like other political doctrines, liberalism is highly sensitive to time and circumstance. Each country’s liberalism is different, and it changes in each generation. The historical development of liberalism over recent centuries has been a movement from mistrust of the state’s power, on the grounds that it tends to be misused, to a willingness to use the power of government to correct perceived inequities in the distribution of wealth resulting from economic competition—inequities that purportedly deprive some people of an equal opportunity to live freely. The expansion of governmental power and responsibility sought by liberals in the 20th century was clearly opposed to the contraction of government advocated by liberals a century earlier. In the 19th century liberals generally formed the party of business and the entrepreneurial middle class, but for much of the 20th century they were more likely to work to restrict and regulate business in order to provide greater opportunities for labourers and consumers. In each case, however, the liberals’ inspiration was the same: a hostility to concentrations of power that threaten the freedom of individuals and prevent them from realizing their full potential, along with a willingness to reexamine and reform social institutions in the light of new needs. This willingness is tempered by an aversion to sudden, cataclysmic change, which is what sets off the liberal from the radical. It is this very eagerness to welcome and encourage useful change, however, that distinguishes the liberal from the conservative, who believes that change is at least as likely to result in loss as in gain.