Immanuel Kant
Kant developed his moral philosophy in three works: "Groundwork of the Metaphysic of Morals" (1785), "Critique of Practical Reason" (1788), and "Metaphysics of Morals" (1797).
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.