In thinking of history in this [progressive & eschatological] way Islam shares common ground with Christianity and with the secular creeds of the modern West. It is misleading to represent Islam and 'the West' as forming civilisations that have nothing in common. Christianity and Islam are integral parts of western monotheism, and as such they share a view of history that marks them off from the rest of the world. Both are militant faiths that seek to convert all humankind. Other religions have been implicated in twentieth-century violence-the state cult of Shintō in Japan during the militarist period and Hindu nationalism in contemporary India, for example. But only Christianity and Islam have engendered movements that are committed to the systematic use of force to achieve universal goals.

The whole world is in some ways better than it's ever been in the past. And, indeed, I think for many people the meaning of their lives really depends on that belief. If you strip out that belief in progress, if you start thinking of the world in the way in which the ancient pre-Christian Europeans did, or the Buddhists and the Hindus or the Taoists of China do, many people think that's a kind of despair. I don't know how many times I've been told "If I thought that, John, I wouldn't get up in the morning" and "If I agreed with you, John, that history had no pattern of that kind, I wouldn't get up in the morning." I said, "Well, stay in bed a bit longer, you might find a better reason for getting up."

While the Marxist faith in central planning is now confined to a few dingy sects, a quasi-religious belief in free markets continues to shape the policies of governments.Many writers have pointed to the havoc and ruin that have accompanied the imposition of free markets across the world. Whether in Africa, Asia, Latin America or post-communist Europe, policies of wholesale privatisation and structural adjustment have led to declining economic activity and social dislocation on a massive scale.

I may not be as unambiguously hostile to capitalism as many people are, but what I don't like about it is the commodification of personal experiences, it turns everyone into actors.

What I liked was Thatcherism's Bolshevik aspect, which was to shake up the whole of Britain quite fundamentally, and if you read what I wrote in those years I think you might agree that in taking the view that I did then - that this was necessary and desirable - I never subscribed to the main delusion of the Thatcherites, which was that you could change everything and everything would remain the same. If what you wanted was a very anarchic, globalised, polyglot, mixed-up society in which most of the structures which had somehow been renewed from the Edwardian period to the Sixties were destroyed, then Thatcherism was what would do the job.

The core of the belief in progress is that human values and goals converge in parallel with our increasing knowledge. The twentieth century shows the contrary. Human beings use the power of scientific knowledge to assert and defend the values and goals they already have. New technologies can be used to alleviate suffering and enhance freedom. They can, and will, also be used to wage war and strengthen tyranny. Science made possible the technologies that powered the industrial revolution. In the twentieth century, these technologies were used to implement state terror and genocide on an unprecedented scale. Ethics and politics do not advance in line with the growth of knowledge - not even in the long run.

Terror is not now, if it ever was, something that comes to us from outside. It is a part of the society in which we live. Both liberals and neoconservatives believe terrorism can be dealt with by removing its causes. The truth is less reassuring. Al-Qaeda has mutated into a decentralised, often locally based type of apocalyptic terrorism and, in this new guise, seems to be acquiring a formidable momentum.

If you want to understand the beliefs that are shaping global politics, read the Book of Revelation.

Blair has been the modern man he claims to be: for him, a sense of subjective certainty is all that is needed for an action to be right. If deception is needed to realise the providential design, it cannot be truly deceitful.

Liberals tend to regard being subjects of the Queen as an insult to their dignity. But at least the archaic structures by which we are ruled do not force us to define ourselves by blood, soil or faith, and we are protected from the poisonous politics of identity.

The result of toppling tyranny in divided countries is usually civil war and ethnic cleansing.

Darwinist thinkers such as Richard Dawkins and Daniel Dennett are militant opponents of Christianity. Yet their atheism and humanism are versions of Christian concepts. As a defender of Darwinism, Dawkins is committed to the view that humans are like other animal species in being 'gene machines' ruled by the laws of natural selection. He asserts nevertheless that humans, uniquely, can defy these natural laws: 'We, alone on earth, can rebel against the tyranny of the selfish replicators.' In affirming human uniqueness in this way, Dawkins relies on a Christian world-view.

Talk of secularism is meaningful when it refers to the weakness of traditional religious belief or the lack of power of churches and other religious bodies. That is what is meant when we say Britain is a more secular country than the United States, and in this sense secularism is an achievable condition. But if it means a type of society in which religion is absent, secularism is a kind of contradiction, for it is defined by what it excludes. Post-Christian secular societies are formed by the beliefs they reject, whereas a society that had truly left Christianity behind would lack the concepts that shaped secular thought.

The mass political movements of the 20th century were vehicles for myths inherited from religion, and it is no accident that religion is reviving now that these movements have collapsed.

Like other human freedoms, the freedoms embodied in market institutions are justified inasmuch as they meet human needs. Insofar as they fail to do this they can reasonably be altered. This is true not only of the rights that are involved in market institutions. It is true of all human rights.

The idea of a law of progress, or of an all but irresistible tendency to general improvement, is then merely a superstition, one of the tents of the modernist pseudo-religion of humanism. Even if such a law or tendency existed and were demonstrable, the liberal faith in progress would for Santayana be pernicious. For it leads to a corrupt habit of mind in which things are valued, not for their present excellence or perfection, but instrumentally, as leading to something better; and it insinuates into thought and feeling a sort of historical theodicy, in which past evil is justified as a means to present or future good. The idea of progress embodies a kind of time-worship (to adopt an expression used by Wyndham Lewis) in which the particularities of our world are seen and valued, not in themselves, but for what they might perhaps become, thereby leaving us destitute of the sense of the present and, at the same time, of the perspective of eternity.

The idea of politics as a conservation in which the collision of opinions is moderated and accommodated, in which what is sought is not truth but peace, has been almost entirely lost, and supplanted by a legalist paradigm in which all political claims and conflicts are modelled in the jargon of rights.

The repression of liberty that took place in the countries in which Communist regimes were established cannot be adequately explained as a product of backwardness, or of errors in the application of Marxian theory. It was the result of a resolute attempt to realize an Enlightenment utopia - a condition of society in which no serious form of conflict any longer exists.

The evil of totalitarianism is not only that it fails to protect specific liberties but that it extinguishes the very possibility of freedom.

Against the many Russian thinkers influenced by Hegel who believed that history was governed by universal laws to which one could only submit, Turgenev upheld the freedom of different societies to pursue different paths of development and of individuals to pursue, even in opposition to powerful historical forces, their own goals and values. Here Turgenev endorsed the celebrated dictum of Alexander Herzen, with whom he disagreed on other matters: that history has no libretto. Human history is a realm of contingency and unpredictability, in which each generation faces conflicts that have no ideal solution.

The belief in unity that has fuelled so many utopian dreams is an effort to reconcile the irreconcilable that ends in repression. Berlin suggests we renounce this venerable faith, and learn how to live with intractable conflict.

Much in the study of the paranormal was what we would now call pseudo-science. But the line between science and pseudo-science is smudged and shifting; where it lies seems clear only in retrospect. There is no pristine science untouched by the vagaries of faith.

There is no more consensus on what justice means than there is on the character of the good. If anything, there is less. Among the virtues, justice is one of the most shaped by convention. For that reason it is among the most changeable.

It is because human needs are contradictory that no human life can be perfect. That does not mean that human life is imperfect. It means that the idea of perfection has no meaning.

Might there not be a connection between the attempt to eradicate religion and the loss of freedom? It is unlikely that Mao, who launched his assault on the people and culture of Tibet with the slogan "Religion is poison," would have agreed that his atheist world-view had no bearing on his policies.

Knowledge grows, but human beings remain much the same.Belief in progress is a relic of the Christian view of history as a universal narrative, and an intellectually rigorous atheism would start by questioning it.

Ridden with conflicts and lacking the industrial base of communism and nazism, Islamism is nowhere near a danger of the magnitude of those that were faced down in the 20th century.

Not everything in religion is precious or deserving of reverence. There is an inheritance of anthropocentrism, the ugly fantasy that the Earth exists to serve humans, which most secular humanists share. There is the claim of religious authorities, also made by atheist regimes, to decide how people can express their sexuality, control their fertility and end their lives, which should be rejected categorically. Nobody should be allowed to curtail freedom in these ways, and no religion has the right to break the peace.

Throughout the years in which the US was punishing countries that departed from fiscal prudence, it was borrowing on a colossal scale to finance tax cuts and fund its over-stretched military commitments. Now, with federal finances critically dependent on continuing large inflows of foreign capital, it will be the countries that spurned the American model of capitalism that will shape America's economic future.

The populist rant about greedy banks that is being loudly ventilated in Congress is a distraction from the true causes of the crisis. The dire condition of America's financial markets is the result of American banks operating in a free-for-all environment that these same American legislators created. It is America's political class that, by embracing the dangerously simplistic ideology of deregulation, has responsibility for the present mess.

The irony of the post-Cold War period is that the fall of communism was followed by the rise of another utopian ideology. In American and Britain, and to a lesser extent other Western countries, a type of market fundamentalism became the guiding philosophy. The collapse of American power that is underway is the predictable upshot.

In the world as we find it, even the barest requirements of a life worth living cannot all be always met in full. Toppling a tyranny may trigger civil war. Protecting a broad range of liberal freedoms may result in the regime that guarantees them being short lived. At the same time, supporting a strong state as a bulwark against anarchy may worsen the abuse of power. Wise policy can temper these conflicts. It cannot hope to overcome them.

An old fairy tale has it that science began with the rejection of superstition. In fact it was the rejection of rationalism that gave birth to scientific inquiry. Ancient and medieval thinkers believed the world could be understood by applying first principles. Modern science begins when observation and experiment come first, and the results are accepted even when what they show seems to be impossible.