Analysis of the supply of money, and in particular of changes in the supply of money, is simple in principle but extremely complex in practice, both … - Milton Friedman

None of this means that government does not have a very real function. Indeed, the tragedy is that because government is doing so many things it ought not to be doing, it performs the functions it ought to be performing badly. The basic functions of government are to defend the nation against foreign enemies, to prevent coercion of some individuals by others within the country, to provide a means of deciding on our rules, and to adjudicate disputes.3

There is no place for government to prohibit consumers from buying products the effect of which will be to harm themselves.

A major source of objection to a free economy is precisely that it gives people what they want instead of what a particular group thinks they ought to want. Underlying most arguments against the free market is a lack of belief in freedom itself.