François Jacob in Pantheon (1982)
Book 1
Murray Gell-Mann in St. Martin's Griffin (1995-09-14)
Book 1
Philip Abelson in Science 1963 139 3561 (29 March 1963)
Journal Article 1
Bertrand Russell in Taylor & Francis (2009-03-02)
Book 1
J.B.S. Haldane in Orient Blackswan (1987-01-01)
Book 1
Jean-Henri Fabre in General Books LLC (2010-10-14)
Book 2
Banesh Hoffmann in Dover Pubns (1959-06-01)
Book 2
Robert Krulwich in NPR (April 14, 2011)
Internet Article 2
Don Pettit in NASA (05.01.2012)
Internet Article 1
Samuel Warren Carey in Stanford Univ Pr (1988)
Book 1
