על החוקים לפרטיהם, ספר ד ל״טOn the Special Laws, Book IV 39
א׳
1[203] He also lays down an ordered series of injunctions all on the same lines by forbidding them to mate their cattle with those of a different species, or to sow the vineyards for two kinds of fruit, or to wear a garment adulterated by weaving it from two materials. The first of these prohibitions has been mentioned in our denunciation of adulterers to suggest still more clearly the wickedness of conspiring against the wedlock of other people, thereby ruining the morals of the wives as well as any honest hopes of begetting a legitimate family. For by prohibiting the crossing of irrational animals with different species he appears to be indirectly working towards the prevention of adultery.
ב׳
2[204] But the law should be mentioned also here, where the theme is justice, for we must not neglect the opportunity where possible of using the same point to bring out more than one moral. Now it is just to join together things which can associate, and the homogeneous are made for association just as the heterogeneous on the other hand cannot be blended or associated, and one who plans to bring them into abnormal companionship is unjust because he upsets a law of nature.
ג׳
3[205] But the law in its essential holiness shows such thoughtfulness for what is just that it does not even allow the land to be ploughed by animals of unequal strength and forbids the ass and the young bull to be yoked together for this purpose, lest the weaker partner, forced to compete with the extra power of the stronger, should break down and faint on the way.
ד׳
4[206] It is true indeed that the stronger, the bull, is named in the list of clean animals while the weaker, the ass, belongs to the unclean. Nevertheless the law did not grudge the help of justice to the seemingly inferior, in order, I believe, to teach judges a most indispensable lesson that they should not in their judgements set the meanly born at a disadvantage, when the point under examination is not concerned with birth but with good and bad conduct.
ה׳
5[207] Also similar to these two is the last enactment in the group, which forbids wool and linen, substances differing in kind, to be woven together, for in this case not only does the difference forbid association, but also the superior strength of the one will produce a rupture rather than unification when they have to be worn.