We read too much Shakespeare at school, and view our parliamentary politics as dynastic drama, in which an impatient crown prince frets at his long subordination and begins to scheme for the throne he knows he merits, was promised and has earned.

The dividing line between wish and need was never clear.

Profits in business always depend on the rate of interest: the higher the interest, the higher the rate of profit required.

By pouring money and goods into devastated regions, foreign aid workers sometimes compound the disruption and debauch the survivors.

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.

Cause and effect, the riddle of all history, is a particular devil in financial history; and never more so than today, where entire classes of security are collapsing not on public exchanges and stock-tickers but because there are no markets to establish prices this side of nothing.

What holds an Arab leader in power is a mixture of violence and prestige. Both President Assad and King Hussein were felt to have defended Arab interests against the world. That, in the end, is more important than what they wear on their head.