Out of this basic language, we build up the other languages of the sciences, beginning with the language of physics, and proceeding to biology, psychology, and the social sciences.

Charles West Churchman, Russell Lincoln Ackoff (1950) Methods of inquiry: an introduction to philosophy and scientific method. p. 185; Partly cited in: Britton, G. A., & McCallion, H. (1994). An overview of the Singer/Churchman/Ackoff school of thought. Systems Practice, Vol 7 (5), 487-521.