In the Small group the ...

In the Small group the individual can know the effects of his actions on his several fellows, and the rules may effectively forbid him to harm them in any manner and even require him to assist them in specific ways. In the Great Society many of the effects of a person\'s actions on various fellows must be unknown to him. It can, therefore, not be the specific effects in the particular case, but only rules which define kinds of actions prohibited or required, which must serve as guides to the individual.
In the Small group the individual can know the effects of his actions on his several fellows, and the rules may effectively forbid him to harm them in any manner and even require him to assist them in specific ways. In the Great Society many of the effects of a person's actions on various fellows must be unknown to him. It can, therefore, not be the specific effects in the particular case, but only rules which define kinds of actions prohibited or required, which must serve as guides to the individual.
 Friedrich August von Hayek

Quotes from the same author

In no other field has the world yet paid so dearly for the abandonment of nineteenth-century liberalism as in the field where the retreat began: in international relations. Yet only a small part of the lesson which experience ought to have taught us has been learned.
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 Friedrich August von Hayek
Many who think themselves infinitely superior to the aberrations of Nazism, and sincerely hate all manifestations, work at the same time for ideals whose realization would lead straight to the abhorred tyranny.
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 Friedrich August von Hayek
Our hopes of avoiding the fate which threatens must...[be to make]adjustments that will be needed if we are to recover and surpass our former standards...and only if every one of us is ready to individually obey the necessities of readjustment shall we be able to get through a difficult period as free men who can choose their own way of life. Let a uniform minimum be secured to everybody by all means; but let us admit at the same time that with this assurance of a basic minimum all claims for a privileged security for particular classes must lapse.
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 Friedrich August von Hayek
It is tempting to believe that social evils arise from the activities of evil men and that if only good men (like ourselves, naturally) wielded power, all would be well. That view requires only emotion and self-praise - easy to come by and satisfying as well. To understand why it is that 'good' men in positions of power will produce evil, while the ordinary man without power but able to engage in voluntary cooperation with his neighbors will produce good, requires analysis and thought, subordinating emotions to the rational.
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 Friedrich August von Hayek
There can be little doubt that man owes some of his greatest successes in the past to the fact that he has not been able to control social life. His continued advance may well depend on his deliberately refraining from exercising controls which are now in his power.
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 Friedrich August von Hayek