Full context:   The quaternary appears in philosophy in various forms which illustrate the quadriversity of points of view, as in the exercise of matrix-based reason. Johann Fichte, for example, notes the absolute separation of four forms of consciousness which translate the absolute diversity of objects (objectivation), the unity and identity of the subject (individuation), the morality of action proceeding from the pure subject (participation) and the unity or equivalency of the subject-object (conjoining).