‘History’ and ‘Political Economy’ have not been differentiated on the basis of systematic reflection; rather, they have been quite different in origi… - Otto Neurath

True science consists in systematically examining all possible cases. Exact political economy has not achieved this until now. It does not even encompass all actual cases. This is one of the reason why exact theory finds itself in opposition to the historical school and why it does not have an awful lot to say to those economists who occupy themselves with issues of practical interest, theories of crisis, cartels and trusts.

What we have of systematic and orderly action and speech ... seems to go back to primeval systematic orderliness as found in magic. The scientific tendency to link everything with everything else, to regard nothing as indifferent, clearly already belonged to the age of magic. If we reach the dependence of human fate on empirical describable conditions, we are much closer in our way of thinking to the men of the magical times that we are commonly apt to suspect.

In the interest of scientific work, more and more formulations in the unified language of unified science are becoming increasingly precise. No term of unified science, however, is free from imprecision, since all terms are based on terms that are essential for protocol statements, whose imprecision must be immediately obvious to everyone.