The term 'fundamentalist', which was coined in 1920, derives from the title of a series of tracts - The Fundamentals - published in the United States from 1910 to 1915. It has since been implicitly defined as meaning a person who believes that, since The Bible is the Word of God, every proposition in it must be true; a belief which, notoriously, is taken to commit fundamentalist Christians to defending the historicity of the accounts of the creation of the Universe given in the first two chapters of Genesis. On this understanding a fully believing Christian does not have to be fundamentalist. Instead it is both necessary and sufficient to accept the Apostles' and/or The Nicene Creed. In Islam, however, the situation is altogether different. For, whereas only a very small proportion of all the propositions contained in the Old and New Testaments are presented as statements made directly by God in any of the three persons of the Trinity, The Koran consists entirely and exclusively of what are alleged to be revelations from Allah (God). Therefore, with regard to The Koran, all Muslims must be as such fundamentalists; and anyone denying anything asserted in The Koran ceases, ipso facto, to be properly accounted a Muslim. Those whom the media call fundamentalists would therefore better be described as revivalists. This conceptual truth not only places a tight limitation upon the possibilities of developmental change within Islam, as opposed to the tacit or open abandonment of one or more of its original particular claims, but also opens up the theoretical possibility of falsifying the Islamic system as a whole by presenting some known fact which is inconsistent with a Koranic assertion.

A fundamentalist is a person who considers whether a fact is acceptable to his religion before he explores it.

As opposed to a curious person who explores first then considers whether or not he wants to accept the ramifications.

Already all of us must have heard about the people who call themselves the Fundamentalists. Their apparent intention is to drive out of the evangelical churches men and women of liberal opinions. I speak of them the more freely because there are no two denominations more affected by them than the Baptist and the Presbyterian. We should not identify the Fundamentalists with the conservatives. All Fundamentalists are conservatives, but not all conservatives are Fundamentalists. The best conservatives can often give lessons to the liberals in true liberality of spirit, but the Fundamentalist program is essentially illiberal and intolerant.

One of the most characteristic new developments since the 1970s has been the rise of a type of religiosity that we usually call “fundamentalism” in most of the major world religions, including the three religions of God. A highly political spirituality, it is literal and intolerant in its vision. In the United States, which has always been prone to extremist and apocalyptic enthusiasm, Christian fundamentalism has attached itself to the New Right. Fundamentalists campaign for the abolition of legal abortion and for a hard line on moral and social decency.

A fundamentalist is a person who considers whether a fact is acceptable to his religion before he explores it. As opposed to a curious person who explores first then considers whether or not he wants to accept the ramifications. A curious person embraces the tension between his religion and something new, wrestles with it and through it, and then decides whether to embrace the new idea or reject it.

I fully realize that the dreaded f-word will be trotted out to stigmatize any model of this kind. Before responding, however, we must first look into the use of this term 'fundamentalist'. On the most common contemporary academic use of the term, it is a term of abuse or disapprobation, rather like 'son of a bitch', more exactly 'sonovabitch', or perhaps still more exactly (at least according to those authorities who look to the Old West as normative on matters of pronunciation) 'sumbitch'. When the term is used in this way, no definition of it is ordinarily given. (If you called someone a sumbitch, would you feel obliged first to define the term?) Still, there is a bit more to the meaning of 'fundamentalist' (in this widely current use): it isn't simply a term of abuse. In addition to its emotive force, it does have some cognitive content, and ordinarily denotes relatively conservative theological views. That makes it more like <nowiki>'</nowiki>stupid sumbitch' (or maybe <nowiki>'</nowiki>fascist sumbitch'?) than 'sumbitch' simpliciter. It isn't exactly like that term either, however, because its cognitive content can expand and contract on demand; its content seems to depend on who is using it. In the mouths of certain liberal theologians, for example, it tends to denote any who accept traditional Christianity, including Augustine, Aquinas, Luther, Calvin, and Barth; in the mouths of devout secularists like Richard Dawkins or Daniel Dennett, it tends to denote anyone who believes there is such a person as God. The explanation is that the term has a certain indexical element: its cognitive content is given by the phrase 'considerably to the right, theologically speaking, of me and my enlightened friends.' The full meaning of the term, therefore (in this use), can be given by something like 'stupid sumbitch whose theological opinions are considerably to the right of mine'.

Fundamentalism therefore reveals a fissure in society, which is polarized between those who enjoy secular culture and those who regard it with dread. As time passes, the two camps become increasingly unable to understand one another. Fundamentalism thus begins as an internal dispute, with liberalizers or secularists within one’s own culture or nation. In the first instance, for example, Muslim fundamentalists will often oppose their fellow countrymen or fellow Muslims who take a more positive view of modernity, rather than such external foes as the West or Israel. Very often, fundamentalists begin by withdrawing from mainstream culture to create an enclave of pure faith (as, for example, within the ultra-Orthodox Jewish communities in Jerusalem or New York). Thence they will sometimes conduct an offensive which can take many forms, designed to bring the mainstream back to the right path and resacralize the world. All fundamentalists feel that they are fighting for survival, and because their backs are to the wall, they can believe that they have to fight their way out of the impasse. In this frame of mind, on rare occasions, some resort to terrorism. The vast majority, however, do not commit acts of violence, but simply try to revive their faith in a more conventional, lawful way.

The Western media often give the impression that the embattled and occasionally violent form of religiosity known as "fundamentalism" is a purely Islamic phenomenon. This is not the case. Fundamentalism is a global fact and has surfaced in every major faith in response to the problems of our modernity. There is fundamentalist Judaism, fundamentalist Christianity, fundamentalist Hinduism, fundamentalist Buddhism, fundamentalist Sikhism, and even fundamentalist Confucianism.

In the Western media and in Western popular thinking, the term "fundamentalist" is almost restricted to Islamic groups, and yet the New World Order is characterized by the upsurge of so-called fundamentalist religious movements. Fundamentalism is a universal phenomenon, which increases with increasing poverty and racism.

Usually, fundamentalists, be they Christian, Muslim, or any faith, shape and interpret religious thought to make it conform to and legitimize a conservative status quo. Fundamentalist thinkers use religion to justify supporting imperialism, militarism, sexism, racism, homophobia. They deny the unifying message of love that is at the heart of every major religious tradition.

The war in Iraq and the situation in the Holy Land are mortal blows for the Christians in the Middle East. Willing or unwilling, we end up being branded as a fifth column of the West. But the strength of fundamentalism lies in the weakness of the so-called Christian West. Fundamentalism is a sickness that gets loose and takes root because of the void of the Western modernity, that uses Christianity only as ideological cover

Muslim fundamentalists have toppled governments and either assassinated or threatened the enemies of Islam with the death penalty. Similarly, Jewish fundamentalists have settled in the Occupied Territories of the West Bank and the Gaza Strip with the avowed intention of driving out the Arab inhabitants, using force if necessary. Thus they believe that they are paving a way for the advent of the Messiah, which is at hand. In all its forms, fundamentalism is a fiercely reductive faith.

Most of us have had some experience interacting with religious fundamentalists, and we understand that one of the problems with fundamentalists is that they have no perspective on themselves. They never recognize that their way of thinking is just one of many other possible ways of thinking, which may be equally useful or good. On the contrary, they believe their way is the right way, everyone else is wrong; they are in the business of salvation, and they want to help you to see things the right way. They want to help you be saved. They are totally rigid and totally uninterested in opposing points of view. In our modern complex world, fundamentalism is dangerous because of its rigidity and its imperviousness to other ideas.

Fundamentalist movements in all faiths share certain characteristics. They reveal a deep disappointment and disenchantment with the modern experiment, which has not fulfilled all that it promised. They also express real fear. Every single fundamentalist movement that I have studied is convinced that the secular establishment is determined to wipe religion out. This is not always a paranoid reaction. We have seen that secularism has often been imposed very aggressively in the Muslim world. Fundamentalists look back to a “golden age” before the irruption of modernity for inspiration, but they are not atavistically returning to the Middle Ages. All are intrinsically modern movements and could have appeared at no time other than our own. All are innovative and often radical in their reinterpretation of religion. As such, fundamentalism is an essential part of the modern scene. Wherever modernity takes root, a fundamentalist movement is likely to rise up alongside it in conscious reaction. Fundamentalists will often express their discontent with a modern development by overstressing those elements in their tradition that militate against it.