"A sentiment of trust in the legal money of the State is so deeply implanted in the citizens of all countries that they cannot but believe that some day this money must recover a part at least of its former value. To their minds it appears that value is inherent in money as such, and they do not apprehend that the real wealth, which this money might have stood for, has been dissipated once and for all.
This sentiment is supported by the various legal regulations with which the Governments endeavor to control internal prices, and so to preserve some purchasing power for their legal tender. Thus the force of law preserves a measure of immediate purchasing power over some commodities and the force of sentiment and custom maintains, especially amongst peasants, a willingness to hoard paper which is really worthless...
If, however, a government refrains from regulations and allows matters to take their course, essential commodities soon attain a level of price out of the reach of all but the rich, the worthlessness of the money becomes apparent, and the fraud upon the public can be concealed no longer."
John Maynard Keynes, Economic Consequences of the Peace, NY, 1920, p. 239-40