In securing the future of the planet, we secure happiness for ourselves. One of the aims of the Greens is to turn around the tide of pessimism amongst the young people of the world.

Australia must prioritise education spending. It is not a question of whether or not we have the money, it is a question of how we choose to spend it.

Wilderness has become one of the world's fastest disappearing resources, and it is non-renewable. Yet unlike oil, gold or woodchips, it is essential to the wellbeing of humanity. We are made of it and fashioned by it...our psychological beings resonate with it.

We are all born bonded to nature; that's why we put depictions of flowers and forests, rather than bulldozers or log piles, on our walls.

I have seen such an immense change from the total repression and criminality of homosexuality in my lifetime. It does make me much more buoyant and optimistic about the future. If that change can occur in that time there's hope for many other changes.

There are better alternatives... Australia should be exporting its solar technology, not its uranium.

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