We have two possibilities to understand reality rationally: by assuming that classes are real or by assuming that classes are our invention. Of these, the former ends in paradoxical contradiction and the latter ends in ambiguity.
We can thus understand reality only as either a paradox or as an ambiguity, whereof the former is inconsistent and the latter is consistent. The problem with this fact is that the latter (ie, a consistent understanding) is that this understanding opens for more than one “true” (ie, consistent) understanding of reality. Exactly how many “true” (ie, consistent) understandings of reality there are is, however, impossible to say.
The eternal fight inside humanity does thus concern whether there is a single true understanding of reality or not, which there obviously isn’t, and then which second alternative we shall prefer: inconsistency or consistency, neither of which can deliver a single true understanding of reality.