One need not be a prophet to be aware of impending dangers. An accidental combination of experience and interest will often reveal events to one man under aspects which few yet see.

The chief difference [between totalitarian and free countries] is that only the totalitarians appear clearly to know how they want to achieve that result, while the free world has only its past achievements to show, being by its very nature unable to offer any detailed "plan" for further growth.

The chief point we must remember is that the great and rapid advance of the physical sciences took place in fields where it proved that explanation and prediction could be based on laws which accounted for the observed phenomena as functions of comparatively few variables - either particular facts or relative frequencies of events.

Nothing is more securely lodged than the ignorance of the experts.

The principle that the end justifies the means is in individualist ethics regarded as the denial of all morals. In collectivist ethics it becomes necessarily the supreme rule.

I have arrived at the conviction that the neglect by economists to discuss seriously what is really the crucial problem of our time is due to a certain timidity about soiling their hands by going from purely scientific questions into value questions.

The ultimate decision about what is accepted as right and wrong will be made not by individual human wisdom but by the disappearance of the groups that have adhered to the "wrong" beliefs.