Modern German statutes have followed in the same path so far as to give the possessory remedies to tenants and some others. Bruns says, as the spirit of the Kantian theory required him to say, that this is a sacrifice of principle to convenience. /2/ But I cannot see what is left of a principle which avows itself inconsistent with convenience and the actual course of legislation. The first call of a theory of law is that it should fit the facts. It must explain the observed course of legislation. And as it is pretty certain that men will make laws which seem to them convenient without troubling themselves very much what principles are encountered by their legislation, a principle which defies convenience is likely to wait some time before it finds itself permanently realized. It remains, then, to seek for some ground for the protection of possession outside the Bill of Rights or the Declaration of Independence, which shall be consistent with the larger scope given to the conception in modern law. [212] The courts have said but little on the subject. It was laid down in one case that it was an extension of the protection which the law throws around the person, and on that ground held that trespass quare clausum did not pass to an assignee in bankruptcy. /1/ So it has been said, that to deny a bankrupt trover against strangers for goods coming to his possession after his bankruptcy would be "an invitation to all the world to scramble for the possession of them"; and reference was made to "grounds of policy and convenience." /2/ I may also refer to the cases of capture, some of which will be cited again. In the Greenland whale-fishery, by the English custom, if the first striker lost his hold on the fish, and it was then killed by another, the first had no claim; but he had the whole if he kept fast to the whale until it was struck by the other, although it then broke from the first harpoon. By the custom in the Gallipagos, on the other hand, the first striker had half the whale, although control of the line was lost. /3/ Each of these customs has been sustained and acted on by the English courts, and Judge Lowell has decided in accordance with still a third, which gives the whale to the vessel whose iron first remains in it, provided claim be made before cutting in. /4/ The ground as put by Lord Mansfield is simply that, were it not for such customs, there must be a sort of warfare perpetually subsisting between the adventurers. /5/ If courts adopt different rules on similar facts, according to the point at which men will fight in the [213] several cases, it tends, so far as it goes, to shake an a priori theory of the matter.