The wild places are where we began. When they end, so do we.

We must begin thinking like a river if we are to leave a legacy of beauty and life for future generations.

We are no longer inheriting the Earth from our parents, we are stealing it from our children.

Without wilderness, the world's a cage.

Understanding how DNA transmits all it knows about cancer, physics, dreaming and love will keep man searching for some time.

The risk presented by these lethal wastes is like no other risk, and we should not be expected to accept it or to project it into the future in order for manufacturers and utilities to make a dollar killing now.

Bring diversity back to agriculture. That's what made it work in the first place.