Columbia subject headings:
Harvard subject headings:
Demoniac possession
Nietzsche, Friedrich Wilhelm, 1844-1900
Philosophy, Ancient.
Plato
Socrates.
Princeton subject headings:
Daimōn (The Greek word)
Nietzsche, Friedrich Wilhelm, 1844-1900--Criticism and interpretation.
Plato--Criticism and interpretation.
Socrates--Criticism and interpretation.