"The constitution trusts, that, under the direction of a Judge, they will not usurp a jurisdiction which is not in their province. They do not know, and are not presumed to know the law; they are not sworn to decide the law; they are not required to decide the law. If it appears upon the record, they ought to leave it there, or they may find the facts subject to the opinion of the Court upon the law. But further, upon the reason of the thing, and the eternal principles of justice, the jury ought not to assume the jurisdiction of the law. As I said before, they do not know, and are not presumed to know anything of the matter; they do not understand the language in which it is conceived, or the meaning of the terms.3 They have no rule to go by but their affections and wishes. It is said, if a man gives a right sentence upon hearing one side only, he is a wicked Judge, because he is right by chance only, and has neglected taking the proper method to be informed; so the jury who usurp the judicature of law, though they happen to be right, are themselves wrong, because they are right by chance only, and have not taken the constitutional way of deciding the question.1 It is the duty of the Judge, in all cases of general justice, to tell the jury how to do right, though they have it in their power to do wrong, which is a matter entirely between God and their own consciences."
January 1, 1970
https://en.wikiquote.org/wiki/Jury