The Inner Experience of I is Experience.
The Outer Appearance of I is Behavior.
The Inner Experience of World is Communication.
The Outer Appearance of World is Science.
The first fourfold is very similar to Hjelmslev’s Net, where Content is Inner Experience, Expression is Outer Appearance, Substance is unitary “I”, and Form is multiplicity “World”.
It is also almost identical to Ken Wilbur’s AQAL as presented here.
E. F. Schumacher / A Guide for the Perplexed
[*7.88, *7.174, *7.176]