Razumnik Ivanov-Razumnik
 Razumnik Vasilyevich Ivanov-Razumnik (real surname - Ivanov; Разумник Васильевич Иванов-Разумник; December 24 1878 Tiflis Georgia then Russian Empire - July 9 1946 Munich Germany was a Russian Soviet author philosopher and literary critic best known for his book The History of Russian Social Thought (1907 in two volumes) and the series of essays on post-Revolution literary life in the Soviet Russia.