This publication continues the series of publications by our publishing house of fundamental texts by major Eurasianists (Savitsky, Alekseev, Vernadsky). The author is the founder of Eurasianism as a worldview, philosophical, cultural and geopolitical school. This book is of particular importance in connection with the rapid and steady growth of interest in Russian society in Eurasian themes, since modernized versions of this theory seriously claim to become in the near future the basis of the national ideology of Russia and the core of the national idea at the current stage of development of Russian society. The Eurasian ideological, sociological, political and cultural doctrine, outlined in the published textbook texts of its founding father, Prince Trubetskoy (1890–1938), is a monument to the philosophical and political thought of Russia of a conservative-revolutionary direction. This publication is aimed at a wide range of readers interested in both the history of Russian political thought and the prospects for its further development.