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.

I am convinced that if the market system were the result of deliberate human design, and if the people guided by the price changes understood that their decisions have significance far beyond their immediate aims, this mechanism would have been acclaimed as one of the greatest triumphs of the human mind.

Liberty not only means that the individual has both the opportunity and the burden of choice; it also means that he must bear the consequences of his actions. Liberty and responsibility are inseparable.

From the fact that people are very different it follows that, if we treat them equally, the result must be inequality in their actual position, and that the only way to place them in an equal position would be to treat them differently. Equality before the law and material equality are therefore not only different but are in conflict with each other; and we can achieve either one or the other, but not both at the same time.

With the exception only of the period of the gold standard, practically all governments of history have used their exclusive power to issue money to defraud and plunder the people.

Democracy is essentially a means, a utilitarian device for safeguarding internal peace and individual freedom. As such it is by no means infallible or certain. Nor must we forget that there has often been much more cultural and spiritual freedom under an autocratic rule than under some democracies and it is at least conceivable that under the government of a very homogeneous and doctrinaire majority democratic government might be as oppressive as the worst dictatorship.

Civilization enables us constantly to profit from knowledge which we individually do not possess and because each individual's use of his particular knowledge may serve to assist others unknown to him in achieving their ends that men as members of civilized society can pursue their individual ends so much more successfully than they could alone.