Critique of Judgement & Critique of Pure Reason is two major works by Emmanuel Kant. Kant 1724 -1804 was a German philosopher who publishes a number of works on ethics, religion, law, aesthetics, astronomy, and history. Kant’s Magnus Opus is the Critique of Pure Reason (originally written in German with the title: Kritik der reinen Vernunft from 1781), aimed to unite European thinking with experience to move beyond what he understood as failures of traditional philosophy and metaphysics. He set out to end an age of speculation where objects outside experience were used to support what he saw as futile theories while opposing the skepticism of thinkers such as Descartes, Berkeley, and Hume.
Download the Public Domain versions of his works here as PDF ebooks (890 and 480 pages):