Russell L. Ackoff Quote
Scientific models have all these connotations. They are representations of states, objects, and events. They are idealized in the sense that they are less complicated than reality and hence easier to use for research purposes. These models are easier to manipulate and "carry" than the real thing. The simplicity of models, compared with reality, lies in the fact that only the relevant properties of reality are represented.
p. 108 as cited in: Joe H. Ward, Earl Jennings (1973) Introduction to linear models. p. 4. - Scientific method: optimizing applied research decisions, 1962