“…At the end of the 19th century, Mach presented his criticisms of Newtonian work and his positivist view of science, making great use of the Principle of the Economy of Thought, which argues that laws and theories should be used to save the scientist's time (Fitas, 1998). According to this principle, a good scientific theory must be written by mathematical formulations, without any relation with the senses, with the causal explanation of the phenomena, or with nature itself (Fisette, 2009). For Mach, every general principle involves an economy of thought, and, in fact, this is the basis of science 10 , which is why in The Science of Mechanics, Mach commented (1919, p. 467) on Lagrange's massive contribution to the Principle of the Economy, by incorporating in his work many possible concepts in a single formula.…”