Allen Newell (1927–1992) American cognitive scientist
Source: Computer Science as Empirical Inquiry: Symbols and Search (1975), p. 120.
Source: General systemantics, an essay on how systems work, and especially how they fail..., 1975, p. 74 Cited in: Roger Kaufman and Fenwick W. English (1979) Needs Assessment: Concept and Application, p. 94
Allen Newell (1927–1992) American cognitive scientist
Source: Computer Science as Empirical Inquiry: Symbols and Search (1975), p. 120.
C. West Churchman (1913–2004) American philosopher and systems scientist
Source: 1960s - 1970s, The Systems Approach (1968), p. 229; cited in Charles Smith (2007, p. 43)
“The solution to all problems lies in the Islamic system”
Abdul Rashid Ghazi (1964–2007) Pakistani fundamentalist
Béla H. Bánáthy (1919–2003) Hungarian linguist and systems scientist
Source: Systems Design of Education (1991), p. 20
A. Wayne Wymore (1927–2011) American mathematician
A Wayne. Wymore (2004) " The nature of research in systems engineering http://sse.stevens.edu/fileadmin/cser/2004/papers/211-Paper119.pdf"; As cited in: Eric David Smith (2006) Tradeoff Studies and Cognitive Biases. p. 31.
Russell L. Ackoff (1919–2009) Scientist
Source: 1970s, Redesigning the future, 1974, p. 21 as cited in: Frederick M. Zimmerman (2011) From Riches to Rags at a Time of Prosperity, p. 12.
Shimon Peres (1923–2016) Israeli politician, 8th prime minister and 9th president of Israel
As quoted by Donald Rumsfeld in "Sharon's Victory" (link is to a preview, but the quote is in the first few visible lines) https://www.wsj.com/articles/SB981508176687515426, Wall Street Journal (7 February 2001)