We seem to have lost the wisdom of the indigenous people, which dictated that in any major decision, the first consideration was 'How will this decision we're making today affect our people in the future? These days, decisions are made based on the bottom line.

I think we must cling to the hope that we can see in the great heroism, the bravery of the firemen and policemen, and the outpouring of caring and concern that has come pouring in from around the world.

Our brain is almost the same as the chimps', but we have language, we have electronic communications, we've put people on the moon - we are immensely more intelligent. And yet: how come the being with the most extraordinary intellect ever is destroying its only planet?

So long as we continued to attach more importance to our own narrow group membership than to the 'global village' we would propagate prejudice and ignorance. There was absolutely no harm in being part of a small group - indeed, with our hunter-gatherer band mentality it gave comfort, provided us with an inner circle of friends who could be utterly trusted, who were absolutely reliable. It helped give us peace of mind. The danger came only from drawing that sharp line, digging that ditch, laying that minefield, between our own group and any other group that thought differently.

We are unique. Chimpanzees are unique. Dogs are unique. But we humans are just not as different as we used to think.

We are always talking about how we can get more environmental and humanitarian education. It is about listening to the voice of young people - how they feel, and what would be most meaningful for them.

What makes us human, I think, is an ability to ask questions, a consequence of our sophisticated spoken language.