Immanuel Kant
Kant published other important works on ethics, religion, law, aesthetics, astronomy, and history. These include the "Universal Natural History" (1755), the "Critique of Practical Reason" (1788), the "Metaphysics of Morals" (1797), and the "Critique of Judgment" (1790), which looks at aesthetics and teleology.
Critique of the Kantian philosophy
At the time he wrote his criticism, Schopenhauer was acquainted only with the second (1787) edition of Kant's "Critique of Pure Reason". When he later read the first (1781) edition, he said that many of Kant's contradictions were not evident.