Peter Coad, Jeff de Luca, and Eric Lefebvre. (1999) Java Modeling Color with Uml: Enterprise Components and Process with Cdrom. Prentice Hall PTR.
“You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete.”
As quoted in Beyond Civilization : Humanity's Next Great Adventure (1999), by Daniel Quinn, p. 137
From 1980s onwards
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Buckminster Fuller 171
American architect, systems theorist, author, designer, inv… 1895–1983Related quotes

Source: Killing Rage: Ending Racism

(quoting Timothy Leary's description of the Psilocybin experience).
Be Here Now (1971)

Source: Debunking Economics - The Naked Emperor Of The Social Sciences (2001), Chapter 8, Let's Do The Time Warp Again, p. 177

in text for catalogue of documenta 7, Kassel, 1982; as cited on collected quotes on the website of Gerhard Richter: on 'Abstract paintings' https://www.gerhard-richter.com/en/quotes/subjects-2/abstract-paintings-7
1980's
“Managers model the way by first changing themselves.”
Source: Reengineering management, 1995, p. 35