Julianus Pomerius

Julianus Pomerius was a Christian priest in fifth century Gaul. He wrote five treatises, only one of which, De Vita Contemplativa, survives.

Life

He was renowned in rhetoric and grammar and was friends with Ennodius and Ruricius.
He appears to have fled from Mauretania, North Africa, to Gaul to escape the Vandals, towards the end of the century. He became an abbot and a teacher of rhetoric at Arles, where he was known as the teacher of Caesarius, a great conservator of Augustine of Hippo's teachings. It is known that their titles probably emphasized the ascetic ideal.
Mary Josephine Suelzer said of Pomerius in her 1947 book Julianus Pomerius, the Contemplative Life:

The De Vita Contemplativa

The first book of the treatise was based around the question of whether a cleric, embroiled by pastoral duties, could ever attain the rewards of the saint who withdrew from the world.
The second book of treatise detailed the active life of a good priest, warning against covetousness and advocating abstinence.
The third book was less specifically aimed at priests and was applicable to all Christians, laity and clergy alike. It delineated the four major vices: pride, cupidity, envy and vanity, of which pride was considered the greatest.
The third book also dealt with the four virtues: temperance, justice, fortitude and prudence.
This part of treatise is like a Christian manual and advice is more practical than theoretical.

His letters from Ruricius

From their correspondence it appears that Ruricius is younger than Pomerius, but is of a higher rank in the church:
Ruricius's letters to Pomerius are almost sermon-like, in that he takes examples from the Bible in order to justify his own actions:

Pomerius's Influence in the Early Middle Ages

From the mid-eighth century through the mid-ninth, Pomerius's text excerpted a strong influence on readers within the Carolingian realm. Prominent ecclesiastical writers of this era, including Chrodegang of Metz, Paulinus of Aquileia, Halitgar of Cambrai, and Jonas of Orléans, drew from Pomerius, although these writers often misattributed quotations from the De vita contemplativa to Prosper of Aquitaine. Pomerius's work was also frequently utilized in the acta resulting from the Church councils held between 813 and 836.