
1990s, Speech to the Council for National Policy (1997)
To End a Presidency (2018)
1990s, Speech to the Council for National Policy (1997)
Kenneth Boulding (1975), International Systems: Peace, Conflict Resolution, and Politics. p. 375 as cited in: Bjørn Møller, Håkan Wiberg (1994) Non-offensive defence for the twenty-first century. p. 36
1970s
Source: Advanced Systems Thinking, Engineering and Management (2003), p. 309; partly cited in: Kurt A. Richardson, Wendy J. Gregory, Gerald Midgley (2006) Systems Thinking and Complexity Science. p. 39
Blaauw (1972) cited in: Gerritt A Blaauw (1976) Digital system implementation. p. 6
Source: At a 2010 fundraiser https://www.forbes.com/sites/ryanmac/2012/05/10/obama-minded-billionaires-mostly-quiet-on-same-sex-marriage/ for the American Foundation for Equal Rights (September 22, 2010)
Source: Civil Government : Its Origin, Mission, and Destiny (1889), p. 10
“Society is now one polish'd horde, Form'd of two mighty tribes, the Bores and Bored.”
Source: Systems Thinking, Systems Practice, 1981, p. 223 as cited in: Gillian Ragsdell, Daune West, Jennifer Wilby (2002) Systems Theory and Practice in the Knowledge Age. p. 82. In the original quote Checkland summarised his earlier work with Smyth published in 1976.