We had a booming stock market in 1929 and then went into the world's greatest depression. We have a booming stock market in 1999. Will the bubble somehow burst, and then we enter depression? Well, some things are not different.

The longer you wait, the less fun. If you wait until the bitter end, the whole economy can be destroyed.

There's a lot of strength in the U.S., but there's a lot of froth also. The froth will blow off. We're going to have to face up to some realities that we're not fully facing up to right now.

The truth of good economic doctoring is to know the general principles, and to really know the specifics. To understand the context, and also, to understand that an economy may need some tender loving care, not just the so-called hard truths, if it's going to get by.

At the most basic level, the key to ending extreme poverty is to enable the poorest of the poor to get their foot on the ladder of development.

Tax the rich. End the wars. Break the power of lobbies in Washington. These are the demands of Occupy Wall Street. They are very important. The US corporations dominate Washington. The big oil companies, Wall Street banks and the military-industrial complex - they rule this country and their influence and power has to be broken.

Deep down, if we really accept that their lives - African lives - are equal to ours, we would all be doing more to put the fire out. Its an uncomfortable truth.