Powerful Quotes - Page 96
"Science and the Problem of Values". Book by Roger Wolcott Sperry, p. 119, 1972.
Richard Leakey (2008). “The Origin Of Humankind”, p.124, Hachette UK
Rhonda Britten (2002). “Fearless Living”, p.139, Penguin
Percy Bysshe Shelley (2013). “Delphi Complete Works of Percy Bysshe Shelley (Illustrated)”, p.1817, Delphi Classics