Locke states that liberty depends upon the necessity of pursuing happiness and upon the government of our passions. It follows from this doctrine that, given a community of citizens who are all both pious and prudent, they will act, given liberty, in a manner to promote the general good. There will be no need of human laws to restrain them, since divine laws will suffice. Legal liberty, therefore, is only completely possible where both prudence and piety are universal; elsewhere, the restraints imposed by criminal law are indispensable.p. 615.

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