↑Horgan, J. (1994) Profile: Philip W. Anderson – Gruff Guru of Condensed Matter Physics, Scientific American271(5), 34-35.
↑Anderson, Philip W. (2011). "Imaginary Friend, Who Art in Heaven". More and Different: Notes from a Thoughtful Curmudgeon. World Scientific. p. 177. ISBN9789814350129. We atheists can, as he does, argue that, with the modern revolution in attitudes toward homosexuals, we have become the only group that may not reveal itself in normal social discourse.
↑"Notable Signers". Humanism and Its Aspirations. American Humanist Association. Archived from the original on October 5, 2012. Retrieved September 15, 2012.