Abstract
<jats:p>Two volumes of 'Lectures on Social Philosophy' by Jakub Kloc-Konkołowicz (1975–2021) contain a one-year academic course, reconstructed from the recordings of two cycles: 2019/20 and 2020/21. The course begins with a presentation of an ambitious understanding of the tasks of social philosophy, then the fundamentals of modern contractualism and liberalism are discussed, followed by their most important critiques, including in particular those based on classical German philosophy. Volume 1, corresponding to the winter semester of the course, focuses on the presentation of philosophical foundations of liberalism and modern contractualism. The lectures begin with the characterization of social philosophy, followed by an extensive discussion of Hobbes's concept as presented in Leviathan. The following part contains the presentation of views of Locke and Rousseau, the detailed discussion of Kant's practical philosophy, and the introduction to Fichte's thought, which is continued in the subsequent volume. There are also references to the concepts of Foucault, Habermas, Schmitt and other philosophers.</jats:p>