3 A widow who is “loosed from the law of her husband” has, for her one duty, to continue a widow. But, you will say, a sombre dress vexes the world. In that case, John the Baptist would vex it, too; and yet, among those that are born of women, there has not been a greater than he. He was called an angel; he baptized the Lord Himself, and yet he was clothed in raiment of camel's hair, and girded with a leathern girdle. Is the world displeased because a widow's food is coarse?
Nothing can be coarser than locusts, and yet these were the food of John. The women who ought to scandalize Christians are those who paint their eyes and lips with rouge and cosmetics; whose chalked faces, unnaturally white, are like those of idols; upon whose cheeks every chance tear leaves a furrow; who fail to realize that years make them old; who heap their heads with hair not their own; who smooth their faces, and rub out the wrinkles of age; and who, in the presence of their grandsons, behave like trembling school-girls. A Christian woman should blush to do violence to nature, or to stimulate desire by bestowing care upon the flesh. “They that are in the flesh,” the apostle tells us, “cannot please God.”
Source: Letters (New Advent)