Immanuel Kant (1724–1804) had a huge influence on the development of classical philosophy. In his works, he touched upon the most important issues of the universe and human society, and introduced many fundamental concepts, including the “categorical imperative.” According to Kant, the categorical imperative is the main rules that should guide both individuals and society as a whole, and no external influences, so-called “objective reasons,” should interfere with the implementation of these rules. Georg Hegel (1770–1831) alone one of the founders of German classical philosophy. The most important concept in Hegel’s philosophical system is the laws of dialectics, according to which everything in the world and society constantly changes from one form to another, and what seems eternal today crumbles to dust tomorrow. This is the “universal world irony”, as defined by Hegel. The book contains the most significant works of Kant and Hegel devoted to this topic.