If therefore a man have a question of Injury, depending on the Law of Nature; that is to say, on common Equity; the Sentence of the Judge, that by Commission hath Authority to take cognisance of such causes, is a sufficient Verification of the Law of Nature in that individuall case. For though the advice of one that professeth the study of the Law, be usefull for the avoyding of contention; yet it is but advice; tis the Judge must tell men what is Law, upon the hearing of the Controversy.
But when the question is of injury, or crime, upon a written Law; every man by recourse to the Registers, by himself, or others, may (if he will) be sufficiently enformed, before he doe such injury, or commit the crime, whither it be an injury, or not: Nay he ought to doe so: for when a man doubts whether the act he goeth about, be just, or injust; and may informe himself, if he will; the doing is unlawfull. In like manner, he that supposeth himself injured, in a case determined by the written Law, which he may by himself, or others see and consider; if he complaine before he consults with the Law, he does unjustly, and bewrayeth a disposition rather to vex other men, than to demand his own right.
If the question be of Obedience to a publique Officer; To have seen his Commission, with the Publique Seale, and heard it read; or to have had the means to be informed of it, if a man would, is a sufficient Verification of his Authority. For every man is obliged to doe his best endeavour, to informe himself of all written Lawes, that may concerne his own future actions.