7 What then can be worse than this unseemliness, this absurdity? For the thing marks a soul, in the first place effeminate, then unfeeling and cruel, then curious and idly busy. For when will he be able to attend to any necessary matter, who is taken up with these superfluous things? When will such a youth endure to take heed to his soul, or to consider so much as that he has a soul? Yes, he surely will be a trifler who cannot help admiring such things; he cruel, who for their sake neglects the poor; he void of virtue, who spends all his diligence on them.
For he that is curious about the beauty of threads, and the bloom of colors, and the tendrils made of such woven work, when will he be able to look upon the heaven? When will he admire the beauty there, who is excited about a kind of beauty that belongs to pieces of leather, and who is bending to the earth? And whereas God has stretched out the Heaven, and lighted up the sun, drawing your looks upwards; you constrain yourself to look downwards, and to the earth, like the swine, and obeyest the devil. For indeed this wicked demon has devised this unseemliness, to draw you off from that beauty. For this intent has he drawn you this way; and God, showing Heaven, is outvied by a devil showing certain skins, or rather not even skins (for indeed these too are God's works), but effeminacy and a bad kind of skill.
And the young man goes about bending down towards the earth, he that is required to seek wisdom concerning the things in Heaven; priding himself more on these trifles than if he had accomplished some great and good work, and walking on tiptoe in the forum, and hereby begetting to himself superfluous sorrows and distresses, lest he should stain them with the mud when it is winter; lest he should cover them with the dust, when summer has come.
What do you say, O man? Have you cast your whole soul into the mire through this extravagance, and do you overlook it trailing on the ground, and are you so anxious about a pair of shoes? Mark their use, and respect the verdict you pass on them. For to tread on mud and mire, and all the spots on the pavement, for this were your shoes made. Or if you can not bear this, take and hang them from your neck, or put them on your head.
And ye indeed laugh at hearing this. But I am inclined to weep for these men's madness, and their earnest care about these matters. For in truth they would rather stain their body with mud, than those pieces of leather.
Triflers then they become in this way, and fond of money again in another way. For he that has been used to be frantic and eager upon such matters, requires also for his clothes and for all other things much expense, and a large income.
And if he have a munificent father, his thraldom becomes worse, his absurd fancy more intense; but if a parsimonious one, he is driven to other unseemliness, by way of getting together a little money for such expenses.
Hence many young men have even sold their manhood, and have become parasites to the rich, and have undertaken other servile offices, purchasing thereby the fulfillment of such desires.
So then, that this man is sure to be at once fond of money, and a trifler, and about important things the most indolent of all men, and that he will be forced to commit many sins, is hereby evident. And that he is cruel and vainglorious, neither this will any one gainsay: cruel, in that when he sees a poor man, through the love of finery he makes as though he did not even see him, but while he is decking out these things with gold, overlooks him perishing of hunger; vainglorious, since even in such little matters he trains himself to hunt after the admiration of the beholders. For I suppose no general prides himself so much on his legions and trophies, as our profligate youths on the decking out of their shoes, on their trailing garments, on the dressing of their hair; yet surely all these are works of other persons, in their trades. But if men do not cease from vain boasting in the works of others, when will they cease from it in their own?
Source: Homilies on the Gospel of St. Matthew (New Advent)