Government has three primary functions. It should provide for military defense of the nation. It should enforce contracts between individuals. It sho… - Milton Friedman

"The compulsory attendance laws are the justification for government control over the standards of private schools. But it is far from clear that there is any justification for the compulsory attendance laws themselves. Our own views on this have changed over time. When we first wrote extensively a quarter of a century ago on this subject, we accepted the need for such laws on the ground that "a stable democratic society is impossible without a minimum degree of literacy and knowledge on the part of most citizens."15 We continue to believe that, but research that has been done in the interim on the history of schooling in the United States, the United Kingdom, and other countries has persuaded us that compulsory attendance at schools is not necessary to achieve that minimum standard of literacy and knowledge. As already noted, such research has shown that schooling was well-nigh universal in the United States before attendance was required. In the United Kingdom, schooling was well-nigh universal before either compulsory attendance or government financing of schooling existed. Like most laws, compulsory attendance laws have costs as well as benefits. We no longer believe the benefits justify the costs. We realize that these views on financing and attendance laws will appear to most readers to be extreme. That is why we only state them here to keep the record straight without seeking to support them at length. Instead, we return to the voucher plan — - a much more moderate departure from present practice."

In the modern world, tariffs and similar restrictions on trade have been one source of friction among nations. But a far more troublesome source has been the far-reaching intervention of the state into the economy in such collectivist states as Hitler's Germany, Mussolini's Italy, and Franco's Spain, and especially the communist countries, from Russia and its satellites to China.

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.