Columbia subject headings:
Excellence.
Ideals (Philosophy)
Metaethics.
Moral realism.
Platonists.
Harvard subject headings:
Excellence.
Ideals (Philosophy)
Metaethics.
Moral realism.
Platonists.
Princeton subject headings:
Excellence.
Ideals (Philosophy)
Metaethics.
Moral realism.
Platonists.