The instance above quoted is very remote, and can hardly be applied to anything in our day. But consider, for instance, the law of Sunday observance which has been revived from the ecclesiastical law. It was a mistake to include it in the Code because it was antagonistic to many French customs, and, in many ways, to the national temperament. The result is what might have been expected, namely, that it has only been carried out in rare instances, and with an infinity of trouble. It might have been made the subject of an edict without being included in the Code. The State might have given a holiday on Sunday to all its officials, employees and workmen. It might have been made quite clear simply by a circular from the Minister of Justice that a workman would not be punished for breach of contract by refusing to work on a Sunday. The law of a weekly day of rest would then have existed, without being formally promulgated, and would have been limited precisely where it should be, by agreement between masters and men who would submit to working on Sundays when they saw that it was necessary and inevitable. Moreover this law would be strong enough to modify without destroying the ancient customs of the people. Here is another instance which occurs within the law laid down by the Code, where the legislator makes use of a method of suggestion and recommendation. Early in the nineteenth century the legislator considered that it was seemly for a husband who surprised his wife in adultery to kill both her and her accomplice. The sentiment is perhaps questionable, but at all events, it was current. Was it given legal sanction? No, not precisely. It is inserted in the law in the form of an insinuation, a discreet recommendation and affectionate encouragement. The legislator wrote these words: "In _flagrante delicto_ murder is excusable." I am not approving the sentiment, but only this manner of indicating rather than enforcing the law and what is thought to be a wholesome practice, and in other instances I should think it excellent. Finally, one of the essential qualities of the legislator is to show discretion in changing existing laws, and for this purpose he should be immune from the passions of men or at all events complete master of those which beset him. For law has no real authority unless it is ancient. Where a law is merely a custom which has become law, it is invested with considerable authority from the first, because it gains strength by the antiquity of the original custom. When on the other hand a law is not an old custom but runs counter to custom, then, before it can have any authority, it must grow old and become a custom itself. In both cases it is on its antiquity that the law must depend for its strength. The law is like a tree, at first it is a tender sapling, then it grows up, its bark hardens, and its roots go deep into the ground and cling to the rock.