XLII. (139) Most correctly, therefore, after the servant has said, “Give me a little water to drink,” does she make answer, not in the manner corresponding to his request: “I will give you to drink,” but “Drink.” For the one expression would have been suited to one who was displaying the riches of God, which are poured forth for all who are worthy of them and who are able to think of them; but the other expression is appropriate to one who professes that she will teach. But nothing which is connected with mere professions is akin to virtue. (140) But he describes in a most skilful manner the language used by her who teaches and benefits her pupils. For “she made haste,” he says, “and took down the pitcher on her arm.” Her alacrity to serve the man was displayed by her making haste, and such alacrity is seated in the mind, beyond which envy is cast away. But by the expression, “taking down the pitcher on her arm,” we see intimated the prompt and eager attention of the teacher to the pupil; (141) for those teachers are foolish who attempt to regulate their explanations not by a reference to the capacity of their pupils, but to their own superior ability, not being aware that there is a vast difference between making a display and giving a lesson. For he who is making a display, relying on the good fortune of his present way of proceeding, brings into sight, without any trouble, the works at which he has for a long while been labouring at home, like the works of painters or sculptors, seeking for praise from the multitude. But he who is endeavouring to teach others, like a good physician, has a regard not to the greatness of his own skill, but to the capacity of his patient who is to be healed; not thinking how much he can do by his art, for it is unspeakable how much this may be; but what the patient requires, aiming at moderation, and bringing forward what may improve him.