In the second place, this high generality must be accompanied with detailed applications to particular cases and circumstances.

Life is full of conflicting demands, and there must be special rules to adjust these various demands.

We have to be told that country is greater than family; that temporary interests are to succumb to more enduring, and so on.
Supposing the Love of our Neighbour to unfold in detail, as it expresses in sum, the whole of morality, this is only another name for our Sympathetic, Benevolent, or Disinterested regards, into which therefore Conscience would be resolved, as it was by Hume.
But Morals is properly considered as a wide-ranging science, having a variety of heads full of difficulty, and demanding minute consideration.

The subject of Justice, has nothing simple but the abstract statement--giving each one their due; before that can be applied, we must ascertain what is each person's due, which introduces complex questions of relative merit, far transcending the sphere of intuition.
If any part of Morals had the simplicity of an instinct, it would be regard to Truth.

The difference between truth and falsehood might almost be regarded as a primitive susceptibility, like the difference between light and dark, between resistance and non-resistance.