Immanuel Kant
Kant published a second edition of the "Critique of Pure Reason" ("Kritik der reinen Vernunft") in 1787, heavily revising the first parts of the book. Most of his subsequent work focused on other areas of philosophy. He continued to develop his moral philosophy, notably in 1788's "Critique of Practical Reason" (known as the second "Critique") and 1797's "Metaphysics of Morals". The 1790 "Critique of Judgment" (the third "Critique") applied the Kantian system to aesthetics and teleology. It was in this critique where Kant wrote one of his most popular statements, ""it is absurd to hope that another Newton will arise in the future who will make comprehensible to us the production of a blade of grass according to natural laws"".
Prolegomena to Any Future Metaphysics
Kant was motivated to write this "Prolegomena" after reading what he judged to be a shallow and ignorant review of his "Critique of Pure Reason". The review was published anonymously in a journal and was written by Garve with many edits and deletions by Feder. Kant's "Critique" was dismissed as "a system of transcendental or higher idealism." This made it seem as though it was an account of things that exist beyond all experience. Kant, however, insisted that his intent was to restrict his investigation to experience and the knowledge that makes it possible. Among other mistakes, the review claimed that Kant's table and deduction of the categories were "common well–known axioms of logic and ontology, expressed in an idealistic manner." Kant believed that his "Critique" was a major statement regarding the possibility of metaphysics. He tried to show in the "Prolegomena" that all writing about metaphysics must stop until his "Critique" was studied and accepted or else replaced by a better critique. Any future metaphysics that claims to be a science must account for the existence of synthetic "a priori" propositions and the dialectical antinomies of pure reason.