Plutarch Quaestiones Convivales 8.1.2

[2] To this Florus subjoined: Now we are celebrating Plato’s nativity, why should we not mention Carneades, the most famous of the whole Academy, since both of them were born on Apollo’s feast; Plato, whilst they were celebrating the Thargelia at Athens, Carneades, whilst the Cyrenians kept their Carnea; and both these feasts are upon the same day. Nay, the God himself (he continued) you, his priests and prophets, call Hebdomagenes, as if he were born on the seventh day. And therefore those who make Apollo Plato’s father ¹ do not, in my opinion, dishonor the God; since by Socrates’s as by another Chiron’s instructions he is become a physician for the greater diseases of the mind. And together with this, he mentioned that vision and voice which forbade Aristo, Plato’s father, to come near or lie with his wife for ten months.