Fichte's critique of Kant.

Fichte without a shadow doubt was the father of German Nationalism .His contribution to German Idealism is not to be ignored.He was a follower of Kant,but modified his doctrine of Thing-in-itself.According to Kant,phenomena is caused by Thing-in-itself (Noumena),we can think of noumena but can never comprehend it.Fichte found incoherence in Kant's doctrine ,according to Kant ,Cause (Law of Causality) belongs to the world of phenoumena and has nothing to do with Noumena.Then how is it that our view of the world (Phenoumena) is caused by Noumena.Thus,Fichte rejected this view and postulated that the experience is created by thinking subject.That was the path of German Idealism that reached its zenith in Hegel's philosophy of Geist.