„The only thing I care about is whether a monkey will turn out a property I can publish. I don't have any love for them. Never have. I don't really like animals. I despise cats. I hate dogs. How could you like monkeys?“
— Harry Harlow American psychologist 1905 - 1981
Interview with Pittsburgh Press-Roto, 1974. Quoted in Blum, Deborah. The Monkey Wars. Oxford University Press, 1994, p. 92.