This is a quote from the book "The Virtue Of Selfishness" by Ayn Rand
...f social conduct in a given geographical area.
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Do men need such an institution — and why?
Since man’s mind is his basic tool of survival, his means of gaining kno
wledge to guide his actions — the basic condition he requires is the freedom to think and to act according to his rational judgment. This does not mean that a man must live alone and that a de
sert island is the environment best suited to his needs. Men can derive enormous benefits from dealing with one another. A social environment is most conducive to their successful survival — b...