A second core basis of permaculture is that designs are based around ecological principles. There are not a strict set of rules but are more like informed strategies and patterns learnt from the natural world. For it is natural systems that are most successful – they are self-organising, productive, resilient and adaptable. By observing natural patterns we can better organise systems.
Successful principles are also gained from learning from indigenous, tribal peoples and those that are retaining a healthy culture of place. As many peoples have met the needs of their communities for thousands of years without destroying their own landbases then they need to be recognised as sources of wisdom. This is not cultural appropriation but genuine respect and solidarity for those that provide living examples of sustainable cultures.