As a result of semi-official suggestions, based on official disapproval of his supposedly liberal views, he decided, in 1822, to leave Berlin, and accepted a professorship at the gymnasium in Saarbrücken.
Dissatisfied with the reactionary tendencies of the Prussian Ministry of Education, he accepted a call to the chair of philosophy at the University of Tübingen in 1842 where he continued to give lectures on all philosophic subjects until his retirement in 1875 when he moved to Stuttgart.
This journal served as an organ of Fichte's views, especially on the subject of the philosophy of religion, where he was in alliance with C. H. Weisse (with whom he regularly corresponded after 1829);[5] but, whereas Weisse thought that the Hegelian structure was sound in the main, and its imperfections might be mended, Fichte held it to be defective, and spoke of it as a masterpiece of erroneous consistency or consistent error.
[6] The great aim of his speculations was to find a philosophic basis for the personality of God, and for his theory on this subject he proposed the term "concrete theism.
He attacks Hegelianism for its pantheism, lowering of human personality, and imperfect recognition of demands of the moral consciousness.
It is characteristic of Fichte's most excessive receptiveness that in his latest published work, Der neuere Spiritualismus (1878), he supports his position by arguments of a somewhat occult or theosophical cast, not unlike that adopted by F. W. H.
[6] The regeneration of Christianity, according to Fichte, would consist in its becoming the vital and organizing power in the state, instead of being occupied solely, as heretofore, with the salvation of individuals.