Any new financial order for the world must tackle the three chief challenges of our age.

Europe and North America, we are told, are less dependent on energy-intensive heavy industry than in the 1960s and 1970s. It seems we squeeze more GDP out of a barrel of oil than in those benighted days.

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.

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.

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.

Because bankers measure their self-worth in money, and pay themselves a lot of it, they think they're fine fellows and don't need to explain themselves.

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.