Friedrich August von Hayek

We know: of course, with regard to the market and similar social structures, a great many facts which we cannot measure and on which indeed we have only some very imprecise and general information.

'Emergencies' have always been the pretext on which the safeguards of individual liberty have been eroded.

Freedom granted only when it is known beforehand that its effects will be beneficial is not freedom.

Pain and fear and hunger are effects of causes which can be foreseen and known: but sorrow is a debt which someone else makes for us.

It is hardly surprising that women concentrate on the way they look instead of what is in their minds since not much has been put in their minds to begin with.

It is characteristic of science that the full explanations are often seized in their essence by the percipient scientist long in advance of any possible proof.