By St. Ambrose of Milan (On the Duties of the Clergy) Book 1, Chapter 41: And let us not pass by St. Lawrence, who, seeing Sixtus his bishop led to martyrdom, began to weep, not at his sufferings but at the fact that he himself was to remain behind. With these words he began to address him: "Where, father, are you going without your son? Where, holy priest, are you hastening without your deacon? Never were you wont to offer sacrifice without an attendant. What are you displeased at in me, my…