Now with the heresy of the Ariomaniacs, which has corrupted the Church of God...These then teach three hypostases, just as Valentinus the heresiarch first invented in the book entitled by him 'On the Three Natures'. For he was the first to invent three hypostases and three persons of the Father, Son and Holy Spirit, and he is discovered to have filched this from Hermes and Plato. (Source: Logan A. Marcellus of Ancyra (Pseudo-Anthimus), 'On the Holy Church': Text, Translation and Commentary. Verses 8-9. Journal of Theological Studies, NS, Volume 51, Pt. 1, April 2000, p.95 ).