In 1770 he obtained the chair of logic and metaphysics at Konigsberg, and delivered as his inaugural address the dissertation _De mundi sensibilis et intelligibilis forma et principiis_. Eleven years later appeared the _Kritik of Pure Reason_, the work towards which he had been steadily advancing, and of which all his later writings are developments. In 1783 he published the _Prolegomena_, intended as an introduction to the _Kritik_, which had been found to stand in need of some explanatory comment. A second edition of the _Kritik_, with some modifications, appeared in 1787, after which it remained unaltered. In spite of its frequent obscurity, its novel terminology, and its declared opposition to prevailing systems, the Kantian philosophy made rapid progress in Germany. In the course of ten or twelve years from the publication of the _Kritik of Pure Reason_, it was expounded in all the leading universities, and it even penetrated into the schools of the Church of Rome. Such men as J. Schulz in Konigsberg, J. G. Kiesewetter in Berlin, Jakob in Halle, Born and A. L. Heydenreich in Leipzig, K. L. Reinhold and E. Schmid in Jena, Buhle in Gottingen, Tennemann in Marburg, and Snell in Giessen, with many others, made it the basis of their philosophical teaching, while theologians like Tieftrunk, Staudlin, and Ammon eagerly applied it to Christian doctrine and morality. Young men flocked to Konigsberg as to a shrine of philosophy. The Prussian Government even undertook the expense of their support. Kant was hailed by some as a second Messiah. He was consulted as an oracle on all questions of casuistry--as, for example, on the lawfulness of inoculation for the small-pox. This universal homage for a long time left Kant unaffected; it was only in his later years that he spoke of his system as the limit of philosophy, and resented all further progress. He still pursued his quiet round of lecturing and authorship, and contributed from time to time papers to the literary journals. Of these, among the most remarkable was his review of Herder's _Philosophy of History_, which greatly exasperated that author, and led to a violent act of retaliation some years after in his _Metakritik of Pure Reason_. Schiller at this period in vain sought to engage Kant upon his _Horen_. He remained true to the _Berlin Journal_, in which most of his criticisms appeared.