Quote from : The New Organic Grower: A Master's Manual of Tools and Techniques for the Home and Market Gardener Book

The only truly dependable production technologies are those that are sustainable over the long term. By that very definition, they must avoid erosion, pollution, environmental degradation, and resource waste. Any rational food-production system will emphasize the well-being of the soil-air-water biosphere, the creatures which inhabit it, and the human beings who depend upon it.