Mortifications to practice in our exterior actions

Author: Cardinal Desire Mercier (1851-1926)
1 - You ought to show the greatest exactitude in observing all the points of your rule of life, obeying them without delay, remembering Saint John Berchmans, who said: "Penance for me is to lead the common life"; "To have the highest regard for the smallest things, such is my motto"; "Rather die than break a single rule."
2 - In the exercise of your duties of state, try to be well-pleased with whatever happens to be most unpleasant or boring for you, recalling again her the words of Saint Francis: "I am never better than when I am not well."
3 - Never give one moment over to sloth: from morning until night keep busy without respite.
4 - If your life is, at least partly, spent in study, apply to yourself this advice from Saint Thomas Aquinas to his pupils: "Do not be content to take in superficially what you read and hear, but endeavor to go into it deeply and to fathom the whole sense of it. Never remain in doubt about what you could know with certainty. Work with a holy eagerness to enrich your mind; arrange and classify in your memory all the knowledge you are able to acquire. On the other hand, do not seek to penetrate mysteries which are beyond your intelligence."
5 - Devote yourself solely to your present occupation, without looking back on what went before or anticipating in thought what will follow. Say with Saint Francis: "While I am doing this I am not obliged to do anything else"; "let us make haste very calmly; all in good time."
6 - Be modest in your bearing. Nothing was so perfect as Saint Francis's deportment; he always kept his head straight, avoiding alike the inconstancy which turns it in all directions, the negligence which lets it droop forward and the proud and haughty disposition which throws it back. His countenance was always peaceful, free from all annoyance, always cheerful, serene and open; without however any merriment or indiscreet humor, without loud, immoderate or too frequent laughter.
7 - He was as composed when alone as in a large gathering. He did not cross his legs, never supported his head on his elbow. When he prayed he was motionless as a statue. When nature suggested to him he should relax, he did not listen.
8 - Regard cleanliness and order as a virtue, uncleanness and untidiness as a vice; do not have dirty, stained or torn clothes. On the other hand, regard luxury and worldliness as a greater vice still. Make sure that, on seeing your way of dressing, nobody calls it "slovenly" or "elegant", but that everybody is bound to think it "decent."