"Free markets" is a very general term. There are all sorts of problems that will emerge. Free markets work best when the transaction between two individuals affects only those individuals. Most often, a transaction between you and me affects a third party. That is the source of all problems for government. That is the source of all pollution problems, of the inequality problem. This reality ensures that the end of history will never come.
Milton FriedmanThere's only one thing that all of the central banks control and that is the base, their own liability, and they can control that in various ways. They can control it directly by open market operations, buying and selling government securities or other assets, for example, buying and selling gold, or they can control it indirectly by altering the rate at which banks lend to one another.
Milton FriedmanThe Great Depression, like most other periods of severe unemployment, was produced by government mismanagement rather than by any inherent instability of the private economy.
Milton FriedmanThere is one and only one social responsibility of business - to use it resources and engage in activities designed to increase its profits so long as it stays within the rules of the game, which is to say, engages in open and free competition without deception or fraud.
Milton FriedmanIf capitalism worked as the socialists think an economic system ought to work, and provided a constant equality of living conditions for all, regardless of whether a man was able or not, resourceful or not, diligent or not, thrifty or not, if capitalism put no premiums on resourcefulness and effort and not penalty on idleness or vice, it would produce only an equality of destitution.
Milton Friedman