The person that is the mother of XXX is who?
Plato
Simplicius quotes Alexander of Aphrodisias, who states that ``according to Plato, the first principles of everything, including the Forms themselves are One and Indefinite Duality (ἡ ἀόριστος δυάς), which he called Large and Small (τὸ μέγα καὶ τὸ μικρόν)'', and Simplicius reports as well that ``one might also learn this from Speusippus and Xenocrates and the others who were present at Plato's lecture on the Good''.