How did Kant’s philosophy influence later German idealism?

Immanuel Kant’s philosophy served as the foundational "critical" starting point for German idealism, though his successors often sought to resolve tensions they perceived in his work. Kant’s transcendental idealism argued that while the mind structures experience through a priori forms (space, time, and categories), the "thing-in-itself" (noumena) remains fundamentally unknowable.123

Later German idealists, including Johann Gottlieb Fichte, F.W.J. von Schelling, and G.W.F. Hegel, largely rejected the existence of the unknowable thing-in-itself as a "pernicious" or superfluous limit to knowledge. They sought to overcome the dualism between the subject and the object by positing a single, absolute principle—such as the Ego, the Absolute Self, or Geist—as the source of all reality.14

By elevating the subject to an absolute position, these thinkers aimed to resolve the contradictions Kant left behind, particularly the tension between human freedom and the causal determinism of the phenomenal world. This shift transformed Kant’s "critical" methodology into various systematic, metaphysical frameworks that defined the trajectory of 19th-century German philosophy.124