In any society freedom of thought will probably be of direct significance for a small minority. But this does not mean that anyone is competent, or ought to have power, to select those to whom this freedom is to be reserved.

To create conditions in which competition will be as effective as possible, to prevent fraud and deception, to break up monopolies- these tasks provide a wide and unquestioned field for state activity.

We know, in other words, the general conditions in which what we call, somewhat misleadingly, an equilibrium will establish itself: but we never know what the particular prices or wages are which would exist if the market were to bring about such an equilibrium.

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.

Though freedom and wealth are both good things which most of us desire and though we often need both to obtain what we wish, they still remain different. Whether or not I am my own master and can follow my own choice and whether the possibilities from which I must choose are many or few are two entirely different questions. The courtier living in the lap of luxury but at the beck and call of his prince may be much less free than a poor peasant or artisan, less able to live his own life and to choose his own opportunities for usefulness.

It is tempting to believe that social evils arise from the activities of evil men and that if only good men (like ourselves, naturally) wielded power, all would be well. That view requires only emotion and self-praise - easy to come by and satisfying as well. To understand why it is that 'good' men in positions of power will produce evil, while the ordinary man without power but able to engage in voluntary cooperation with his neighbors will produce good, requires analysis and thought, subordinating emotions to the rational.

Ever since the beginning of modern science, the best minds have recognized that "the range of acknowledged ignorance will grow with the advance of science." Unfortunately, the popular effect of this scientific advance has been a belief, seemingly shared by many scientists, that the range of our ignorance is steadily diminishing and that we can therefore aim at more comprehensive and deliberate control of all human activities. It is for this reason that those intoxicated by the advance of knowledge so often become the enemies of freedom.