FromRosemary Morrow in "Earthusers guide to Pc."
1. Every thing works at least two ways
2. See solutions not problems
3. Cooperation not competition in work, communications and economics
4. Make things pay.
5. Work wwhere it counts
6. Use everything to its highest capacity.
7. Bring food production back to the cities.
8. Help make people self reliant.
9. Minimise maintenance and energy inputs to achieve maximum yields.

and in Robin Clayfield's "You Can Have Your Pc. and Eat It Too"
1.Diversity; creating variety in Life and creating functional connections.
2.Elevational Planning; look at a site in profile.
3. Multiple Functions: use things for many purposes, place elements so as it
serves more than 2 functions.
4. Multiple Elements; there is more than one to get what you want.
5. Patterns; Use to see shapes in our lives asnd create flow and function of
different elements in relationship to each other.
6. Biological Resources: Use biological rather than mechanical means.
7. Zones;  Place elements in relation to importance and priority.
8. Sectors;  Chanel external energies into or away from our system.
9. Relative Location; Put things in the right place in relation to each
component so they benefit each other.
10. Energy Cycling; about stopping the flow of nutrients and energy away
from a site.
11. Natural Succession; the evolution of a system, to move towards a long
term stable system.
Then include the 3 Ethics; Care of the Earth, Care of Pepole and Share our
Resources.