If people want some guidance, I say, just look at what people really do. Don't listen to them that much.

You don’t have a snail problem, you have a duck deficiency.

"Should we tamper with nature?" is no longer a question - we've tampered with nature on the whole face of the Earth.

We have to rethink how we're going to live on this earth - stop talking about the fact that we've got to have agriculture, we've got to have exports, because all that is the death of us.

Permaculture offers a radical approach to food production and urban renewal, water, energy and pollution. It integrates ecology, landscape, organic gardening, architecture and agro-forestry in creating a rich and sustainable way of living. It uses appropriate technology giving high yields for low energy inputs, achieving a resource of great diversity and stability. The design principles are equally applicable to both urban and rural dwellers

I can easily teach people to be gardeners, and from them, once they know how to garden, you'll get a philosopher.

One of the great rules of design is do something basic right. Then everything gets much more right of itself. But if you do something basic wrong - if you make what I call a Type 1 Error - you can get nothing else right.