ABSTRACT
The list of feasible justifications registered earlier includes, besides human nature, three kinds of normmaking facts. The first is the fact that the norm has been stipulated by a heteronomous, authoritative “source,” the second—that the norm is a necessary dictate of reason, and the third—that the norm is true. All three have a common peculiar characteristic: by transcending human nature, they presume broader assertions about the ultimate nature of the world, or about our knowledge of the world, or both.
