Why should we, however, in economics, have to plead ignorance of the sort of facts on which, in the case of a physical theory, a scientist would certainly be expected to give precise information?

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.

The Socratic maxim that the recognition of our ignorance is the beginning of wisdom has profound significance for our understanding of society. Most of the advantages of social life, especially in the more advanced forms that we call "civilization" rest on the fact that the individual benefits from more knowledge than he is aware of. It might be said that civilization begins when the individual in the pursuit of his ends can make use of more knowledge than he has himself acquired and when he can transcend the boundaries of his ignorance by profiting from knowledge he does not himself possess.

We must show that liberty is not merely one particular value but that it is the source and condition of most moral values. What a free society offers to the individual is much more than what he would be able to do if only he were free. We can therefore not fully appreciate the value of freedom until we know how a society of free men as a whole differs from one in which unfreedom prevails.

At a time when most movements that are thought to be progressive advocate further encroachments on individual liberty, those who cherish freedom are likely to expend their energies in opposition. In this they find themselves much of the time on the same side as those who habitually resist change.

The state itself becomes more and more identified with the interests of those who run things than with the interests of the people in general.

It is of the essence of the demand for equality before the law that people should be treated alike in spite of the fact that they are different.