Muhkachev V.V. “The second violin” of Marx. To the 200th anniversary of the birth of F. Engels. Svobodnaya mysl (Free thought), 2020, No 5, pp. 200-217. Muhkachev V.V. “The second violin” of Marx. To the 200th anniversary of the birth of F. Engels. Svobodnaya mysl (Free thought), 2020, No 5, pp. 200-217.ISSN 0869-4435DOI 10.24411/0869-4435-2020-00016РИНЦ: https://www.elibrary.ru/item.asp?id=44184748Posted on site: 11.12.20Текст статьи на сайте журнала URL: http://www.svom.info/entry/1062-vtoraya-skripka-marksa-k-200-letiyu-so-dnya-rozhde/ (дата обращения 11.12.2020)AbstractThe article is dedicated to the 200th anniversary of the birth of Friedrich Engels, a like-minded fellow in the struggle of the international proletariat to free itself and humanity from capitalist slavery and a close, chivalrously faithful friend of Karl Marx. In the center of the article is the question of the role and place of Engels in the history of Marxism and science as a special form of cognition.