A system is a set of things people, cells, molecules, or whatever interconnected in such a way that they produce their own pattern of behavior over time... The system, to a large extent, causes its own behavior.
Donella MeadowsThere have been high crimes and misdemeanors, but they have been committed by the special prosecutor and the Congress, not the president.
Donella MeadowsModels can easily become so complex that they are impenetrable, unexaminable, and virtually unalterable.
Donella MeadowsSince the Earth is finite, and we will have to stop expanding sometime, should we do it before or after nature's diversity is gone?
Donella Meadows