The advantage of a free market is that it allows millions of decision-makers to respond individually to freely determined prices, allocating resources - labor, capital and human ingenuity - in a manner that can't be mimicked by a central plan, however brilliant the central planner.

To undertake the direction of the economic life of people with widely divergent ideals and values is to assume responsibilities which commit one to the use of force; it is to assume a position where the best intentions cannot prevent one from being forced to act in a way which to some of those affected must appear highly immoral. This is true even if we assume the dominant power to be as idealistic and unselfish as we can possibly conceive. But how small is the likelihood that it will be unselfish, and how great are the temptations!

The confidence in the unlimited power of science is only too often based on a false belief that the scientific method consists in the application of a ready-made technique, or in imitating the form rather than the substance of scientific procedure, as if one needed only to follow some cooking recipes to solve all social problems. It sometimes almost seems as if the techniques of science were more easily learnt than the thinking that shows us what the problems are and how to approach them.

Socialist thought owes its appeal to the young largely to its visionary character; the very courage to indulge in Utopian thought is in this respect a source of strength for socialism which traditional liberalism sadly lacks. Speculation about general principles provides an opportunity for the play of the imagination of those who are unencumbered by much knowledge of the facts of present-day life. Their ideas suffer from inherent contradictions, and any attempt to put them into practice must produce something utterly different from what they expect.

Capitalism is not only a better form of organizing human activity than any deliberate design, any attempt to organize it to satisfy particular preferences, to aim at what people regard as beautiful or pleasant order, but it is also the indispensable condition for just keeping that population alive which exists already in the world. I regard the preservation of what is known as the capitalist system, of the system of free markets and the private ownership of the means of production, as an essential condition of the very survival of mankind.

Economic control is not merely control of a sector of human life which can be separated from the rest; it is the control of the means for all our ends. And whoever has sole control of the means must also determine which ends are to be served, which values are to be rates higher and which lower, in short, what men should believe and strive for.

If the resources of different nations are treated as exclusive properties of these nations as wholes, if international economic relations, instead of being relations between individuals, become increasingly relations between whole nations organized as trading bodies, they inevitably become the source of friction and envy between whole nations.