Instance in keeping Compacts That men should keep their compacts is certainly a great and undeniable rule in morality.

But yet, if a Christian, who has the view of happiness and misery in another life, be asked why a man must keep his word, he will give this as a reason:--Because God, who has the power of eternal life and death, requires it of us.

But if a Hobbist be asked why?
he will answer:--Because the public requires it, and the Leviathan will punish you if you do not.

And if one of the old philosophers had been asked, he would have answered:--Because it was dishonest, below the dignity of a man, and opposite to virtue, the highest perfection of human nature, to do otherwise.
6.

Virtue generally approved not because innate, but because profitable.
Hence naturally flows the great variety of opinions concerning moral rules which are to be found among men, according to the different sorts of happiness they have a prospect of, or propose to themselves; which could not be if practical principles were innate, and imprinted in our minds immediately by the hand of God.