Immanuel Kant (1724 – 1804) had a huge influence on the development of classical philosophy in the world. 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. The book contains Kant’s works on morality, the origins of good and evil in the human soul, as well as about imperative laws, the violation of which leads to personality degradation.