Source: An exploration in the theory of optimum income taxation, 1971, p. 208
“It is too often not realized that culture itself is an adaptive tool, one of whose main functions is to make the physiological emergencies come less and less often.”
A Theory of Human Motivation http://psychclassics.yorku.ca/Maslow/motivation.htm (1943)
1940s-1960s
Help us to complete the source, original and additional information
Abraham Maslow 34
American psychologist 1908–1970Related quotes

[David, Brooks, http://www.nytimes.com/2011/05/24/opinion/24brooks.html?_r=1, Britain Is Working, New York Times, May 23, 2011, May 24, 2011]
2010s

28
Essays, Can Poetry Matter? (1991), The Catholic Writer Today (2013)

Quote by Georges Jeanniot, Jan. 1882 - written after visiting Manet's studio; as quoted in 'The Importance of Manet's Conceptualization in 'Olympia' and 'The Bar at the Folies-Bergère' http://www.arthistoryarchive.com/arthistory/manet/arthistory_manet.html, by Charles Moffat, on 'The Art History Archive', c. 2001
Manet kept on working during Jeanniot's visit; he was painting 'The Bar at the Folies-Bergère' https://upload.wikimedia.org/wikipedia/commons/0/0d/Edouard_Manet%2C_A_Bar_at_the_Folies-Berg%C3%A8re.jpg
1876 - 1883

Source: Everything I Want to Do Is Illegal: War Stories from the Local Food Front