Ancient Christian Witness

"(6) He also wrote a dialogue against the Jews, which he
held at Ephesus with Tryphon, the most distinguished among the Hebrews of his
day. In this he showed how the divine grace stimulated him to this discourse on
the faith, what zeal also he had before evinced in the studies of philosophy,
and what indefatigable research he had applied in the discovery of the
truth."