Gregory the Great
Catena Aurea · Matthäusevangelium 5
Ye have heard that it hath been said, An eye for an eye, and a tooth for a tooth: But I say unto you, That ye resist not evil: but whosoever shall smite thee on thy right cheek, turn to him the other also. And if any man will sue thee at the law, and take away thy coat, let him have thy cloak also. And whosoever shall compel thee to go a mile, go with him twain. Give to him that asketh thee, and from him that would borrow of thee turn not thou away.
(Mor. xxxi. 13.) There are, who are so far to be endured, as they rob us of our worldly goods; but there are whom we ought to hinder, and that without breaking the law of charity, not only that we may not be robbed of what is ours, but lest they by robbing others destroy themselves. We ought to fear much more for the men who rob us, than to be eager to save the inanimate things they take from us. When peace with our neighbour is banished the heart on the matter of worldly possessions, it is plain that our estate is more loved than our neighbour.