They, however, give a bias to the formation of moral rules, and pervert the proper test of right and wrong in a manner to be afterwards explained.
10.

Although Prudence and Sympathy, and the various Emotions named, are powerful inducements to what is right in action, and although, without these, right would not prevail among mankind, yet they do not stamp the _peculiar attribute_ of Rightness.

For this, we must refer to the institution of Government, or Authority.
Although the force of these various motives on the side of right is all-powerful and essential, so much so, that without them morality would be impossible, they do not, of themselves, impart the character of a moral act.

We do not always feel that, because we have neglected our interest or violated our sympathies, we have on that account done wrong.

The criterion of rightness in particular cases is something different.
The reasons are apparent.