Dialogue 2.7-8
Since Martin of Tours once has dined with the wife of the Emperor Maximus, Sulpicius and his interlocutors deliberate whether this fact would not pose a poor example for clerics. They reach the conclusion that the circumstances of this particular dinner were special: Martin did not want to attend, emperor's wife only served him food and did not recline with him at the table, and so on. Clerics should by all means avoid casual meetings with women.
For if we were to adopt Martin's ways, we would never have to plead cases involving kissing, and we would be free from all the reproaches of unfavorable opinion.
(trans. Goodrich 2015: 221, summarized by J. Szafranowski)