Vincent lavished the greatest care on the training of his priests. They were to be simple and frank in their relations with the poor, modest in manner, friendly and easy of access.

"Our sermons must go straight to the point," he would say, "so that the humblest of our hearers may understand; our language must be clear and unaffected." The love of virtue and the hatred of evil were the points to be insisted on; the people were to be shown where virtue lay and how to attain it. For "fine sermons" Vincent had the greatest contempt; he would use his merry wit to make fun of the pompous preachers whose only thought was to impress their audience with an idea of their own eloquence.

"Of what good is a display of rhetoric?" he would ask; "who is the better for it? It serves no purpose but self-advertisement."

The Mission Priests did good wherever they went; everybody wanted them, and it was hard to satisfy the appeals for missions which came from all over the country. In due time the Congregation outgrew the Collège des Bons Enfants, and was transferred to a large Augustinian priory which had originally been a leper hospital, and still bore the name of St. Lazare.

Up to this time the Mission Priests had contented themselves with ministering to the peasantry, but in the course of their travels it had become painfully apparent that the clergy themselves were in urgent need of some awakening force. Those of good family led, for the most part, worldly and frivolous lives, while the humbler sort were as ignorant as the peasants among whom they lived. The religious wars had led to laxity and carelessness; drunkenness and vice were fearfully prevalent.

To Vincent, with his high ideals of the priesthood, this was a terrible revelation. The old custom of giving a retreat to priests who were about to be ordained had fallen into disuse. With the assistance of some of the French bishops he determined to revive it, and retreats of ten or fourteen days were organized at St. Lazare for candidates to the priesthood. Here, in an atmosphere of prayer and recollection, those who were about to be ordained had every opportunity of realizing the greatness of the step that they were taking and of making resolutions for their future lives.

The Mission Priests were to help in this work more by example than by precept; they were to preach by humility and simplicity. "It is not by knowledge that you will do them good," Vincent often repeated, "or by the fine things you say, for they are more learned than you—they have read or heard it all before. It is by what they see of your lives that you will help them; if you yourselves are striving for perfection, God will use you to lead these gentlemen in the right way."

The blessing of God seemed, indeed, to rest upon the ordination retreats; nearly all who made them carried away something of Vincent's noble ideal of the priestly life. Many to whom they had been the turning point of a lifetime, felt the need of further help and instruction from the man who had awakened all that was noblest in their natures.

To meet this necessity Vincent inaugurated a kind of guild for young priests who desire to live worthy of their vocation. Weekly gatherings were held at St. Lazare under the name of "Tuesday Conferences," where difficulties were discussed, debates held and counsels given. It was not easy to belong to the "Conferences." Members were pledged to offer their lives completely to God and to renounce all self-interest. Nevertheless, they increased rapidly in number, and the Conferences were attended by all the most influential priests in Paris.

But Vincent's zeal was boundless, and one good work grew out of another. The retreats for ordination candidates having been so successful, he conceived the idea of giving retreats on the same lines for the laity. The work thrived beyond all expectation. All were admitted without exception: noblemen and beggars, young men and old, the learned and the ignorant, priests and laymen. St. Lazare at such times, Vincent once said, was like Noah's ark: every kind of creature was to be found in it.