“The quaternity is an archetype of almost universal occurrence. It forms the logical basis for any whole judgment______________

there are four aspects of psychological orientation, beyond which nothing fundamental remains to be said. In order to orient ourselves, we must have a function which ascertains that something is there (sensation); a second function which establishes what it is (thinking); a third function which states whether it suits us or not, whether we wish to accept it or not (feeling); and a fourth function which indicates where it came from and where it is going (intuition)____________the fourfold aspect is the minimum requirement for a complete judgement. The idea of completeness is the circle or sphere, but its natural minimal division is a quaternity”. C.G.Jung