Why did Georg Wilhelm Friedrich Hegel disagree with Friedrich Schelling’s philosophy?

G.W.F. Hegel disagreed with Friedrich Schelling’s philosophy primarily because he rejected Schelling’s definition of the Absolute as an undifferentiated, featureless unity of subject and object.12

In his work The Phenomenology of Mind, Hegel famously criticized this conception of the Absolute by comparing it to the night, “in which all cows are black,” implying that such a state lacks the necessary internal distinctions and clarity required for true philosophical understanding.2

Furthermore, Hegel took issue with the methodology of Schelling’s system. He argued that Schelling failed to explain the process of how one arrives at the Absolute, instead presenting it as if it were “shot out of a pistol” without the necessary logical development. While both philosophers were central figures in Absolute Idealism, Hegel’s approach emphasized a structured, coherent progression of thought, whereas he viewed Schelling’s reliance on an immediate, indiscriminate unity as philosophically insufficient.21