Headline: Freedom, Selfishness, and CooperationLink: http://www.britannica.com/blogs/2011/04/freedom-selfishness-cooperation/Publication Date: Monday, April 25, 2011Primary Source: Encyclopædia Britannica BlogType: new media postFormat: New MediaNature of Mention: authoredScholar: Boaz, DavidResearch Area: Government and PoliticsSubjects: Michael Gerson's critique of libertarianism and ObjectivismAttached Files: Boaz--Britannica--selfishness_1.pdf