7 In the gospel a harlot wins salvation. How? She is baptized in her tears and wipes the Lord's feet with that same hair with which she had before deceived many. She does not wear a waving headdress or creaking boots, she does not darken her eyes with antimony. Yet in her squalor she is lovelier than ever. What place have rouge and white lead on the face of a Christian woman? The one simulates the natural red of the cheeks and of the lips; the other the whiteness of the face and of the neck.
They serve only to inflame young men's passions, to stimulate lust, and to indicate an unchaste mind. How can a woman weep for her sins whose tears lay bare her true complexion and mark furrows on her cheeks? Such adorning is not of the Lord; a mask of this kind belongs to Antichrist. With what confidence can a woman raise features to heaven which her Creator must fail to recognize? It is idle to allege in excuse for such practices girlishness and youthful vanity. A widow who has ceased to have a husband to please, and who in the apostle's language is a widow indeed, needs nothing more but perseverance only.
She is mindful of past enjoyments, she knows what gave her pleasure and what she has now lost. By rigid fast and vigil she must quench the fiery darts of the devil. If we are widows, we must either speak as we are dressed, or else dress as we speak. Why do we profess one thing, and practise another? The tongue talks of chastity, but the rest of the body reveals incontinence.
Source: Letters (New Advent)