The interventionists do not approach the study of economic matters with scientific disinterestedness. Most of them are driven by an envious resentmen… - Ludwig von Mises

"Is precisely in market dealings that market prices are formed for all kinds of goods and services, which will be taken as the bases of calculation. Where there is no free market, there is no pricing mechanism; without a pricing mechanism, there is no economic calculation."
"eben im Marktverkehr für alle Arten von verwendeten Gütern und Arbeiten Marktpreise gebildet werden, die zur Grundlage der Rechnung genommen werden können. Wo der freie Marktverkehr fehlt, gibt es keine Preisbildung; ohne Preisbildung gibt es keine Wirtschaftsrechnung."

Value is not intrinsic, it is not in things. It is within us; it is the way in which man reacts to the conditions of his environment. Neither is value in words and doctrines, it is reflected in human conduct. It is not what a man or groups of men say about value that counts, but how they act.

Permanent mass unemployment destroys the moral foundations of the social order. The young people, who, having finished their training for work, are forced to remain idle, are the ferment out of which the most radical political movements are formed. In their ranks the soldiers of the coming revolutions are recruited.