This is a quote from the book "The ​Virtue Of Selfishness" by Ayn Rand
...nce to establish that a crime has been committed and to prove who committed it, as well as objective rules to define punishments and enforcement procedures. Men who attempt to prosecute crimes, without such rules, are a lynch mob. If a society left the retaliatory use of force in the hands of individual citizens, it would degenerate into mob rule, lynch law and an endless series of blo ody private feuds or vendettas.

If physical force is to be barred from social relationships, men need an institution charged with the task of protecting their rights under an objec...
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