Bound up with this consideration, is the circumstance that moral rules

differ among men, according to their views of happiness
Bound up with this consideration, is the circumstance that moral rules
differ among men, according to their views of happiness. The existence
of God, and our obedience to him, are manifest in many ways, and are
the true ground of morality, seeing that only God can call to account
every offender; yet, from the union of virtue and public happiness, all
men have recommended the practice of what is for their own obvious
advantage. There is quite enough in this self-interest to cause moral
rules to be enforced by men that care neither for the supreme Lawgiver,
nor for the Hell ordained by him to punish transgressors.