“There are three schools of magic. One: State a tautology, then ring the changes on its corollaries; that’s philosophy. Two: Record many facts. Try to see a pattern. Then make a wrong guess at the next fact; that’s science. Three: Awareness that you live in a malevolent universe controlled by Murphy’s Law, sometimes offset in part by Brewster’s Factor: that’s engineering.”
Source: The Number of the Beast (1980), Chapter XLVIII : L’Envoi or Rev. XXII: 13, p. 508
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Robert A. Heinlein 557
American science fiction author 1907–1988Related quotes
“Two wrongs don't make a right.
No, but three will get you back on the freeway!”

Source: 1960s - 1980s, MANAGEMENT: Tasks, Responsibilities, Practices (1973), Part 3, p. 681
Source: I'd Tell You I Love You, But Then I'd Have to Kill You

“Two wrongs don’t make a right, but three lefts do.”
Ron English's Fauxlosophy (2016)

Archives of the Orgone Institute; quoted in "The New American Medicine" in Journal of The Mindshift Institute (2002) http://mindshiftinstitute.org/Article_New_American_Medicine.htm
Context: I am well aware of the fact that the human race has known about the existence of a universal energy related to life for many ages. However, the basic task of natural science consisted of making this energy usable. This is the sole difference between my work and all preceding knowledge.

Friedrich Stadler (1996). "Otto Neurath—encyclopedia and utopia." In: E. Nemeth & F. Stadler (Eds.). Encyclopedia and utopia: The life and work of Otto Neurath (1882–1945), Boston: Kluwer. Stadler, 1996, p. 3