Bread is to be conquered

http://dwardmac.pitzer.edu/Anarchist_Archives/kropotkin/mutaidcontents.html

http://librivox.org/mutual-aid-a-factor-of-evolution-by-peter-kropotkin/

http://en.wikipedia.org/wiki/Mutual_Aid:_A_Factor_of_Evolution

http://en.wikipedia.org/wiki/Peter_Kropotkin

http://en.wikipedia.org/wiki/Anarchist_communism