12 surviving letters between Harpocras and Isidore of Pelusium, spanning 425 AD.
“To Harpocras the sophist.”
“To Harpocras the Sophist [a teacher of rhetoric].”
“To the Same Person.”
“To Harpocras, the sophist.”
“To the same person.”
“To the Same Person That I am by nature inclined to blush at praise, your learning knows quite precisely.”
“To Harpocras the Sophist.”
“To Harpocras, a Sophist [a professional rhetorician and teacher of eloquence].”