Columbia subject headings:
Cicero, Marcus Tullius--Philosophy.
Idea (Philosophy)
Philosophy, Ancient.
Plato.
Platonists--Rome.
Harvard subject headings:
Idea (Philosophy)
Knowledge, Theory of.
Neoplatonism.
Philosophy, Ancient.
Photinus.
Plato
Princeton subject headings:
Cicero, Marcus Tullius--Philosophy.
Idea (Philosophy)
Philosophy, Ancient.
Plato.
Platonists--Rome.