Kazimierz Kelles-Krauz was an extraordinary figure on the Polish political scene at the turn of the 20th century. A Marxist and patriot, academic and politician, Kelles-Krauz was most known for his efforts to reconcile the needs of the nation with international socialism. This volume, however, offers a selection of his writings centred on the history of ideas, published for the first time in English. Kelles-Krauz’s works, while Marxist at heart, linked ideas stemming from the concepts of German idealists, French positivists, as well as contemporary sociologists who offered a bridge between...