The weapons of the positive revolution are not bullets and bombs but simple human perceptions. Bullets and bombs may offer physical power but eventually will only work if they change perceptions and values. Why not go the direct route and work with perceptions and values?

The power of a car is separate from the way the car is driven.

Argument is meant to reveal the truth, not to create it.

A person who knows all the answers, has an opinion on everything, has a certainty backed up by rational argument, has very little possibility of further progress. Such a person is unlikely to walk away from a discussion with anything more than a reaffirmation of how right he or she has been all along.

Creativity and lateral thinking have exactly the same basis as humour.

The system will always be defended by those countless people who have enough intellect to defend but not quite enough to innovate.

This is not about charity, it's about justice... The war against terror is bound up in the war against poverty - I didn't say that, Colin Powell said that . . .