St. Robert Bellarmine
A warning to priests, to sacristans, and to all who attend Holy Mass.
What will become of them, those sad traitors who sell Christ daily for less than Judas did, for a woman's kiss, or a dance, or a cup of wine? When celebrating the tremendous mystery of the Mass, a priest knows right well that he is in the Holy of Holies, surrounded by choirs of adoring angels who tremble with awe. Think then, what a matter for tears it is, to see one so placed, cold and inattentive, and in such a hurry that it looks as if he thought he had a band of robbers on his track....
-- in James Brodrick. S.J., St. Robert Bellarmine: Saint and Scholar, page