[71] Therefore in other disputes and trials, when the question at issue is, whether a thing has been done or not, whether what is alleged be true or false; and when false witnesses are sometimes suborned, and false documents foisted in; it is possible that sometimes a virtuous judge may be led into error by a seemingly honourable and probable pretence; or that an opportunity may be given to a dishonest judge, of appearing to be guided by the witnesses, or by the documents produced, though in reality he has knowingly given a wrong decision. For questions of law there is nothing of this sort, O judges: there are no forged documents, no dishonest witnesses; even that overgrown power, which has sway in this state, is dormant with respect to cases of this sort; it has no means of attacking the judge, or of moving a finger.