Some great quotes:
You ask me what I did during my novitiate. Well, there were two of us. I threw the other fellow out the window, and then I was alone.” 
If the priest is a saint (the saying goes), the people will be fervent; if the priest is fervent, the people will be pious; if the priest is pious, the people will at least be decent; but if the priest is only decent, the people will be godless. The spiritual generation is always one degree less intense in its life than those who beget it in Christ. 
A preacher endowed with learning but of only mediocre piety may be able to paint a picture of Christian Truth that will stir souls, bring them a little closer to God, even increase their faith. But if one is to fill souls with the life-giving savor of virtue, he must first have tasted the true spirit of the Gospel and made it enter into the substance of his own life by means of mental prayer. 
Father Desurmont often returns, in his writings, to the thought that for certain souls salvation is completely tied up with sanctity. All or nothing. Burning love of Christ, or adoration of the world and allegiance to the direction of Satan. Sanctity or damnation!
If you are wise, you will be reservoirs and not channels. Si sapis, concham te exhibebis et non canlem? (Bernard, Serm. xviii in Cant.)