“[A] plurality of paradigms in economics and in social sciences in general is not only an obvious fact but also a necessary and desirable phenomenon in a very complex and continually changing subject.“

Kurt W. Rothschild, To push and to be pushed, American Economist, 43, 1999, p. 5

“The principal enemy is orthodoxy: to use the same recipe, administer the same therapy, to resolve the most various types of problems; never to admit complexity and try to reduce it as much as possible, while ignoring that things are always more complicated in reality.“

Albert O. Hirschman, Crossing Boundaries: Selected Writings. Zone Books, p. 110