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"".
History of aesthetics before the 20th century
Kant's theory of aesthetic judgments remains a highly debated aesthetic theory until today. It is important to note that Kant uses the term "aesthetics" ("Ästhetik") to refer to any sensual experience. The work most crucial to aesthetics as a strand of philosophy is the first half of his Critique of the Power of Judgment, the "Critique of the Aesthetic Power of Judgment". It is subdivided in two main parts - the "Analytic of the Beautiful" and the "Analytic of the Sublime", but also deals with the experience of fine art.