DO NOT BE PROUD OF HUMILITY.
I know your[1] humility. I know that you can say with sincerity, Lord, my heart is not haughty or my eyes lofty; I know that in your heart as in that of your mother the pride through which the devil fell has no place. It would be time wasted to write to you about it; for there is no greater folly than to teach a pupil what he knows already. But now that you have despised the boastfulness of the world, do not let the fact inspire you with new boastfulness. Harbor not the secret thought that having ceased to court attention in garments of gold you may begin to do so in mean attire. And when you come into a room full of brothers and sisters, do not sit in too low a place or plead that you are unworthy of a footstool. Do not deliberately lower your voice as though worn out with fasting; or, leaning on the shoulder of another, mimic the tottering gait of one who is faint. Some women, it is true, disfigure their faces so that they may appear to other people to fast.[2] As soon as they catch sight of any one, they groan, they look down; they cover up their faces, except for one eye, which they keep free to see with. Their dress is somber, their girdles are of sackcloth, their hands and feet are dirty; only their stomachs—which cannot be seen—are hot with food. Of these the psalm is sung daily: The Lord will scatter the bones of them that please themselves.[3] Others change their garb and assume the appearance of men, being ashamed of being what they were born to be—women. They cut off their hair and are not ashamed to look like eunuchs. Some clothe themselves in goat’s hair, and, putting on hoods, pretending to become children again by making themselves look like so many owls.[4]
Letter 22.27