It is one of the most fatal illusions that, by substituting negotiations between states or organized groups for competition for markets or for raw materials, international friction would be reduced. This would merely put a contest of force in the place of what can only metaphorically be called the "struggle" of competition and would transfer to powerful and armed states, subject to no superior law, the rivalries which between individuals had to be decided without recourse to force.

[T]hose who are willing to surrender their freedom for security have always demanded that if they give up their full freedom it should also be taken from those not prepared to do so.

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.

Unlike liberalism, with its fundamental belief in the long-range power of ideas, conservatism is bound by the stock of ideas inherited at a given time. And since it does not really believe in the power of argument, its last resort is generally a claim to superior wisdom, based on some self-arrogated superior quality.

The system of private property is the most important guaranty of freedom, not only for those who own property, but scarcely less for those who do not.

The social sciences, like much of biology but unlike most fields of the physical sciences, have to deal with structures of essential complexity, i.e. with structures whose characteristic properties can be exhibited only by models made up of relatively large numbers of variables.

It is rarely remembered now that socialism in its beginnings was frankly authoritarian. It began quite openly as a reaction against the liberalism of the French Revolution. The French writers who laid its foundation had no doubt that their ideas could be put into practice only by a strong dictatorial government. The first of modern planners, Saint-Simon, predicted that those who did not obey his proposed planning boards would be 'treated as cattle'.