The article focuses on Hegel's conception of dialectics on the background of Plato's Sophistes. Hegel radicalizes Plato's doctrine of the highest genera by understanding unity exclusively as related to alterity.
Instead of being tied to perspectives, this relation is ontologically grounded - unity is constituted through difference. This dynamic conception of being shall be understood against the background of Hegel's Phenomenology: Any being is only insofar as it appears; and as appearing it is essentially a relation of sameness and alterity.
Rather than a monistic philosopher, Hegel is to be understood as a philosopher of the ontological relation of unity and difference.