21. Some one will say: “Why have you brought forward the example of Mary, as if any one could be found to imitate the Lord’s mother? And why that of Thecla, whom the Apostle of the Gentiles trained? Give us a teacher of our own sort if you wish for disciples.” I will, therefore, set before you a recent example of this sort, that you may understand that the Apostle is the teacher, not of one only, but of all.