c. 175–192; survives in fragments, partly in Arabic
Greek, partly surviving in Arabic
The Notices on the Christians
Galen of Pergamum · 129 – c. 216
The greatest physician of antiquity mentions Christians four or five times in passing, twice comparing arguing with them to arguing with the school of Moses — they accept undemonstrated laws. But he grants that they hold to justice, restrain their appetites, and include some who philosophise as well as anyone.