Plato gave no credit to the maxims of the existing society; these were wholly unscientific.
It is obvious that this vague and indeterminate standard would settle nothing practically; no one can tell what it is.

It is only of value as belonging to a very exalted and poetic conception of virtue, something that raises the imagination above common life into a sphere of transcendental existence.
II .-- The Psychology of Ethics.
1.

As to the Faculty of discerning Right.

This is implied in the foregoing statement of the criterion.

It is the Cognitive or Intellectual power.