law to which it belonged had any authority to supersede local customs, the elder jurist would not probably have ventured to do more than question the applicability of the rule, or at best cite some counter-proposition from the Pandects or the Canon Law. It is extremely necessary to bear in mind the uncertainty of men's notions on this most important side of juridical controversies, not only because it helps to explain the weight which the lawyers threw into the monarchical scale, but on account of the light which it sheds on several curious historical problems. The motives of the author of the Forged Decretals and his extraordinary success are rendered more intelligible by it. And, to take a phenomenon of smaller interest, it assists us, though only partially, to understand the plagiarisms of Bracton. That an English writer of the time of Henry III should have been able to put off on his countrymen as a compendium of pure English law a treatise of which the entire form and a third of the contents were directly borrowed from the Corpus Juris, and that he should have ventured on this experiment in a country where the systematic study of the Roman law was formally proscribed, will always be among the most hopeless enigmas in the history of jurisprudence; but still it is something to lessen our surprise when we comprehend the state of opinion at the period as to the obligatory force of written texts, apart from all consideration of the source whence they were derived.
