Corpus mysticum, Stefan Rossbach essay

Contemplating the history of Western philosophy, Luhmann noted that 2,000 years of searching for “essence” had led to universal problematization of identity, unity, stability or of being in general. From now on, identity had to be understood as a system, i.e., as a structured openness to other possibilities. It is important to appreciate that Luhmann’s understanding of “system” drew on a cluster of concepts that included . . . “being,” “identity,” and “problem.”