Not so he that comes from the theatre: he will look upon his wife with more dislike, he will be peevish with his servants, bitter towards his children, and savage towards all. Great are the evils theatres cause to cities, great indeed, and we do not even know that they are great. Shall we examine other scenes of laughter also, I mean the feasts, with their parasites, their flatterers, and abundance of luxury, and (compare with them) places where are the halt and blind? As before, in the former is drunkenness, luxury, and dissoluteness, in the latter the reverse.— See also with regard to the body, when it is hot-blooded, when it is in good case, it undergoes the quickest change to sickness: not so, when it has been kept low.
Then let me make my meaning clearer to you:— let there be a body having plenty of blood, plenty of flesh, plump with good living: this body will be apt even from any chance food to engender a fever, if it be simply idle. But let there be another, struggling rather with hunger and hardship: this is not easily overcome, not easily wrestled down by disease. Blood, though it may be healthy in us, does often by its very quantity engender disease: but if it be small in quantity, even though it be not healthy, it can be easily worked off.
So too in the case of the soul, that which leads an easy, luxurious life, has its impulses quickly swayed to sin: for such a soul is next neighbor to folly, to pleasure, to vainglory also, and envy, and plottings, and slanderings. Behold this great city of ours, what a size it is! Whence arise the evils? Is it not from those who are rich? Is it not from those who are in enjoyment? Who are they that “drag” men “before the tribunals?” Who, that dissipate properties? Those who are wretched and outcasts, or those who are inflated with consequence, and in enjoyment?
It is not possible that any evil can happen from a soul that is afflicted. Paul knew the gain of this: therefore he says, “Tribulation works patience, and patience experience, and experience hope, and hope makes not ashamed.” Then let us not sink in our afflictions, but in all things give thanks, that so we may get great gain, that we may be well-pleasing to God, who permits afflictions. A great good is affliction: and we learn this from our own children: for without affliction (a boy) would learn nothing useful.
But we, more than they, need affliction. For if there, when the passions (as yet) are quiet, (chastisement) benefits them, how much more us, especially possessed as we are by so many! Nay, we behoove rather to have schoolmasters than they: since the faults of children cannot be great, but ours are exceeding great. Our schoolmaster is affliction. Let us then not draw it down willingly upon ourselves, but when it has come let us bear it bravely, being, as it is, always the cause of numberless good things; that so we may both obtain grace from God, and the good things which are laid up for them that love Him, in Christ Jesus our Lord, with Whom to the Father, together with the Holy Spirit, be glory, might, honor, now and evermore, world without end. Amen.
Source: Homilies on Acts (New Advent)