„Operations research '(OR) is the securing of improvement in social systems by means of scientific method“

—  Charles West Churchman, C. West Churchman, "Operations research as a profession" (1970); cited in Arjang A. Assad, Saul I. Gass (2011) Profiles in Operations Research: Pioneers and Innovators. p. 181
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„The government is committed to extending the coverage of social security in the country to ensure Malaysians from all walks of life are covered by a sustainable and affordable social security system.“

—  Wan Azizah Wan Ismail Malaysian politician 1952
Wan Azizah Wan Ismail (2018) cited in " 90% of Malaysian workers do not have social security, says Wan Azizah https://www.thestar.com.my/news/nation/2018/10/02/dr-wan-azizah-137mil-malaysian-workers-do-not-have-social-security/" on The Star Online, 2 October 2018

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„Darwinism is not a testable scientific theory, but a metaphysical research program.“

—  Karl Popper Austrian-British philosopher of science 1902 - 1994
Unsourced variant: Evolution is not a fact. Evolution doesn't even qualify as a theory or as a hypothesis. It is a metaphysical research program, and it is not really testable science. <!-- perhaps in "Darwinism as a metaphysical research programme" in Methodology and Science Vol. 9 (1976), p. 103 — 119. -->

„The conclusions of most good operations research studies are obvious.“

—  Robert E. Machol American systems engineer 1917 - 1998
Cited in: Paul Dickson (1999) The official rules and explanations. p. 14 Machol named this the "Billings Phenomenon". Dickson explains: "The name refers to a well-known Billings story in which a farmer becomes concerned that his black horses are eating more than his white horses. He does a detailed study of the situation and finds that he has more black horses than white horses, Machol points out."

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