Prince Pyotr Alexeyevich Kropotkin ( / k r oŹ Ė p É t k ÉŖ n , k r É - / ; [9] Russian : ŠŃŃŃ ŠŠ»ŠµŠŗŃŠµĢŠµŠ²ŠøŃ ŠŃŠ¾ŠæŠ¾ĢŃŠŗŠøŠ½ ; December 9, 1842 ā February 8, 1921) was a Russian geographer , economist, activist, philologist , zoologist , evolutionary theorist , philosopher, writer, and prominent anarchist . Kropotkin advocated a communist society free from central government and based on voluntary associations between workers. He wrote many books, pamphlets and articles, the most prominent being The Conquest of Bread and Fields, Factories and Workshops , and his principal scientific offering, Mutual Aid: A Factor of Evolution . He also contributed the article on anarchism to the EncyclopƦdia Britannica Eleventh Edition . [From Wikipedia: https://en.wikipedia.org/wiki/Peter_Kropotkin ]