There's a presumption that somehow you calculate beforehand whether something is going to be good politically or not. I simply don't.

As a Green, my goal is to put a smile on the face of the coming generations.

There is a spiritual side to our connection with the planet. And in this material world, that's anathema. It is somewhat worrying. What I say.. it makes life. It gives us fulfilment. It makes us whole human beings. And without it, we make mistakes. And, boy, are the leaders of the world making mistakes at the moment.

The pursuit of eternity is no longer the prerogative of the gods - it is the business of us all, here and now.

I am not a conventionally religious man, but in the wilderness I have come closest to finding myself and knowing the universe and accepting God - by which I mean accepting all that I don't know.

Real life security and contentment come not from putting a gun in the cupboard, but from taking a role in the world's future.

So far as we know, Earth is the only planet which supports life, and it is the only planet on which we can survive. Our bodies and our minds are fashioned by it. Our hearts resonate with it. There will be little joy for the human spirit if we destroy the natural fabric of Earth with nothing left to do but go shopping. When we imagine the world a century from now, when we look our great grandchildren in the eye and see them smiling back at us because they know we cared for them, we smile too!