XIV. (71) Therefore, continues the sacred historian, Sarah, the wife of Abraham, having taken Hagar, the Egyptian woman, her own handmaiden, ten years after Abraham had begun to dwell in the land of Canaan, gave her to Abraham her "husband, to be his Wife."[Ge 16:3.] Wickedness is by nature an envious, and bitter, and evil-disposed thing, but virtue is gentle, and inclined to communion, and friendly; wishing in every possible manner to benefit those who are well disposed, either by its own power or by the means of others. (72) So now accordingly, as we are not able to become the fathers of children by prudence, she espouses us to her own handmaiden, encyclical instruction, as I have said before, and all but endures to be the bridesmaid and manager of the marriage; for it is said that Sarah herself took this woman and gave her to her own husband. (73) And here it is worth while to raise the question why it is that now again Moses calls the wife of Abraham Sarah, when he had already repeatedly told us what her name was before; for he was not a writer who ever indulged in that worst description of prolixity, tautology. What, then, are we to say? Since she is about to betroth to him the handmaiden of wisdom, encyclical instruction, he says that she did not forget the duty which she owed to her mistress, but knew that she was, both in law and in her master's feelings, his wife, and that she herself was only such because of necessity and the force of opportunity. And this happens to every man who is fond of learning. And he who has experienced it may be looked upon as the most trustworthy witness to this fact. (74) At all events I, when I was first excited by the stimulus of philosophy to feel a desire for it, when I was very young connected myself with one of her handmaidens, namely, grammar; and all the offspring of which I became the father by her, such as writing, reading, and the acquaintance with the works of the poets and historians, I attributed to the mistress. (75) And at a subsequent time, forming connection with another of her handmaidens, geometry, and admiring her beauty (for she had beautiful symmetry and proportions in all her parts), I still appropriated none of the offspring, but carried them to the citizen wife, and bestowed them on her. (76) I was desirous also to form a similar connection with a third, and she was full of good rhythm, well arranged, and well limbed, and was called music. And by her I became the parent of diatonic, and chromatic, and harmonic, and combined and separate melodies, and all the different concords belonging to fourths and to fifths, and to the diapason. And, again, I concealed none of all these things, in order that my legitimate citizen wife might become wealthy, being ministered unto by a multitude of ten thousand servants; (77) for some men, being attracted by the charms of handmaidens, have neglected their true mistress, philosophy, and have grown old, some in poetry, and others in the study of painting, and others in the mixture of colours, and others in ten thousand other pursuits, without ever being able to return to the proper mistress; (78) for each act has its own peculiar brillliancies, certain attractive powers, by which some persons are allured and overcome, forgetting all the covenants which they have made with philosophy; but he who abides by the agreements which he has made, provides every thing from all quarters with a view to pleasing her. Very appropriately, therefore, does the sacred scripture, admiring his good faith in respect of his legitimate wife, say that even now Sarah was his true wife, inasmuch as he only took his handmaid into his bed out of complaisance towards her; (79) and, indeed, in the same manner as the encyclical branches of education contribute to the proper comprehension of philosophy, so also does philosophy aid in the acquisition of wisdom; for philosophy is an attentive study of wisdom, and wisdom is the knowledge of all divine and human things, and of the respective causes of them. Therefore, just as encyclical accomplishments are the handmaidens of philosophy, so also is philosophy the handmaiden of wisdom; (80) but philosophy teaches temperance with regard to the belly, and temperance with regard to the parts below the belly, and also temperance and restraint of the tongue. Now these qualities are said to be worthy of praise for their own sakes, but they would appear more respectable still if they were cultivated for the sake of doing honour to and giving pleasure to God. We must, therefore, always remember the legitimate mistress when we are about to espouse her handmaidens; and let us be said indeed to be the husbands of the latter, but still let our legitimate mistress be our real wife, and not merely called such.