“The proof of a theory is in its reasoning, not in its sponsorship”
Ludwig von Mises (1881–1973) austrian economist
Theory of Money and Credit http://www.econlib.org/library/Mises/msT1.html (1912) <br class="br">Source: http://www.econlib.org/library/Mises/msT2.html#I.5.12 | Theory of Money and Credit