From A Critique of Interventionism — surrounding passage

Ever since

“The Marxian dogma according to which socialism is bound to come 'with the inexorability of a law of nature' is just an arbitrary surmise devoid of any proof.”

The rich literature of the Historical-Realistic School on the history of economic policies is said to confirm the doctrines of interventionism. 8 The fact that measures have been taken, and continue to be taken, does not prove that they are suitable. It only proves that their sponsors did not recognize their unsuitability. In fact, contrary to the beliefs of the “empirics,” it is not so easy to comprehend the significance of an economic measure.