Nature is not simply a technical or economical resource, and human beings are not mere numbers. To suggest that one can somehow align all the squabbling institutions of science, environmental management, government and diplomacy in an alliance of convenience to regulate the global climate seems to me optimistic.
A century ago, petroleum - what we call oil - was just an obscure commodity; today it is almost as vital to human existence as water.
Economists, like royal children, are not punished for their errors.
Bulls don't read. Bears read financial history. As markets fall to bits, the bears dust off the Dutch tulip mania of 1637, the Banque Royale of 1719-20, the railway speculation of the 1840s, the great crash of 1929.
Profits in business always depend on the rate of interest: the higher the interest, the higher the rate of profit required.
Since the attack on the United States on September 11 2001, and the US retaliation in Afghanistan and Iraq, there must be few people who have not felt a twinge of nostalgia for the cold war.
Even before he came to power in 1997, Gordon Brown promised to change the accounts to parliament from simple litanies of cash in and cash out, to a more commercial system that took notice of the public property the departments were using. This system is known as resource accounting.
To give money to a woman - and here I must speak as a man - is to deny her special quality, her irreplaceability, and reduce her unique amiability to a commodity. Money takes away her name, while transforming her lover into a nameless customer of a market of appetites.
Life without oil, in fact, would be so different that it is frightening to contemplate. We are addicted, and it is no comfortable addiction.
Financial crises are like fireworks: they illuminate the sky even as they go pop.
In rising financial markets, the world is forever new. The bull or optimist has no eyes for past or present, but only for the future, where streams of revenue play in his imagination.
In modern society, where most people live in cities, and where both needs and wishes are absolved through the same remote agency - money - the distinction between wishes and needs has altogether vanished.
The prevailing ideology of the modern west - which is political economy - is in the doghouse. Having failed to notice atmospheric pollution, the economists then frightened themselves with the sort of financial crisis they said they had abolished.
Of all the failed technologies that litter the onward march of science - steam carriages, zeppelins, armoured trains - none has been so catastrophic to prosperity as the last century's attempt to generate electricity from nuclear fission.
When William the Conqueror commissioned a great survey of his English realm at Gloucester in 1085, the result was a work so thorough, fair, dispassionate, and wide-ranging that it seemed to the succeeding generations to have come from another world.
Osama bin Laden, the Saudi-born revolutionary who is believed by most Arab and Iranian observers to be the inspiration of the attacks in New York and Washington, is the best known of the Islamic militants to have emerged in the past 20 years and the least difficult to fathom.
It is time to end the western policy of malign neglect. It is in the interest of the whole world to help tackle the actual grievances in Palestine, Kashmir, and in central and southern Iraq, and to help the region out of its economic backwardness.
Saudi Arabia is a puritanical state that claims a monopoly of wisdom and virtue.
Whatever else it was, Adolf Hitler's short-lived regime was also a colossal industrial process by which the wealth and productive power of much of Europe was wrenched from its normal purposes and converted into a machine for killing.
To make a love story, you need a couple of young people, but to reflect on the nature of love, you're better off with old ones. That is a fact of life and literature - and of the novel ever since it fell in love with love in the 18th century.
The year 2008 was a reminder to those who had forgotten that there is such a thing as history and that the cycle of famine and feast in commerce, first identified in antiquity and well understood in the Middle Ages, was not suddenly abolished in modern times.
The truth is, of course, that history is not completed in modern commerce any more than philosophy is perfected in political economy. In other words, there is nothing timeless or God-given about filling stations and penicillin and plastic bags.
At the heart of banking is a suicidal strategy. Banks take money from the public or each other on call, skim it for their own reward and then lock the rest up in volatile, insecure and illiquid loans that at times they cannot redeem without public aid.
My belief, for what it is worth, is that city dwellers cannot understand the world. Insulated from reality by complex and expert systems of provision and police, baffled by fashion and spectacle, city dwellers can distinguish neither the sources of their existence nor the consequences.
Saudi Arabia operates according to the belief that God made young men and women so utterly and completely without self-control that they must be physically segregated every moment of the day and night.